CIDCO INC
10-Q, 1997-08-14
TELEPHONE & TELEGRAPH APPARATUS
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================================================================================
                                                         

                UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-Q

(Mark One)

 [ x ]  Quarterly  report  pursuant  to  Section  13 or 15(d) of the  Securities
Exchange Act of 1934 for the quarterly period ended June 30, 1997.
                                                        OR
 [ ]  Transition  report  pursuant to Section  13(d) or 15(d) of the  Securities
Exchange Act of 1934 for the transition period from __________ to __________.
                                          
                        Commission file number: 0-23296


                               CIDCO INCORPORATED
             (Exact Name of Registrant as Specified in its Charter)

               Delaware                                  13-3500734
   (State or other jurisdiction of                    (I.R.S. employer
    incorporation or organization)                 identification number)


                               220 Cochrane Circle
                              Morgan Hill, CA 95037
              (Address of principal executive offices and zip code)

                                 (408) 779-1162
              (Registrant's telephone number, including area code)


Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  Registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.

                       YES  X        NO
                          -----        -----
The number of shares outstanding of the Registrant's  Common Stock on August 12,
1997 was 14,418,632.
================================================================================
<PAGE>

                               CIDCO INCORPORATED
                                    Form 10-Q
                                      INDEX


PART I.       FINANCIAL INFORMATION                                        Page

         Item 1.  Financial Statements:

                  Balance sheet at June 30, 1997
                      and December 31, 1996 ..................................3

                  Income statement for the three and
                      six months ended June 30, 1997 and 1996 ................4

                  Statement of cash flows for the
                      six months ended June 30, 1997 and 1996 ................5

                  Notes to financial statements ..............................6

         Item 2.  Management's Discussion and Analysis of
                      Financial Condition and Results of Operations...........7


PART II.      OTHER INFORMATION

         Item 1.  Legal Proceedings..........................................11

         Item 2.  Changes in Securities......................................11

         Item 3.  Defaults upon Senior Securities............................11

         Item 4.  Submission of Matters to a Vote of Security Holders........11

         Item 5.  Other Information..........................................12

         Item 6.  Exhibits and Reports on Form 8-K ..........................12


SIGNATURES ..................................................................13

<PAGE>
<TABLE>

Part I.       FINANCIAL INFORMATION
Item 1.       Financial Statements
<CAPTION>
                                                CIDCO INCORPORATED
                                                   BALANCE SHEET
                                       (in thousands, except per share data)
                                                                June 30,        December 31,
                                                                  1997              1996
                                                               ----------       ---------
                                                              (unaudited)
<S>                                                           <C>              <C>
ASSETS
Current assets:
   Cash and cash equivalents ..............................   $    38,733      $    26,509
   Short-term investments .................................        40,964           38,560
   Accounts receivable, net of allowances
     for doubtful accounts of $3,097 and $2,966............        38,137           48,242
   Inventories ............................................         8,085           14,555
   Deferred tax asset .....................................         5,086            5,086
   Other current assets ...................................           829            1,284
                                                              -----------      -----------

     Total current assets .................................       131,834          134,236

Property and equipment, net ...............................        12,603           14,118
Other assets ..............................................         3,134            4,259
                                                              -----------      -----------

                                                              $   147,571      $   152,613
                                                              ===========      ===========

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
   Accounts payable .......................................   $    14,034      $    16,880
   Accrued liabilities ....................................         9,348            6,211
   Accrued taxes payable ..................................             -              676
                                                              -----------      -----------

     Total current liabilities ............................        23,382           23,767
                                                              -----------      -----------

Stockholders' equity:
  Common stock, $.01 par value; 35,000 sharesauthorized,
      14,311 and 14,033 shares issued and outstanding .....           144              144
   Additional paid-in capital .............................        88,587           87,725
   Treasury stock..........................................       (12,942)               -
   Retained earnings ......................................        48,400           40,977
                                                              -----------      -----------

     Total stockholder's equity ...........................       124,189          128,846
                                                              -----------      -----------

                                                              $   147,571      $   152,613
                                                              ===========      ===========
<FN>
         The accompanying notes are an integral part of these financial statements.
</FN>
</TABLE>
<PAGE>
<TABLE>
                               CIDCO INCORPORATED
                                INCOME STATEMENT
                (in thousands, except per share data; unaudited)

<CAPTION>
                                      Three months ended            Six months ended
                                           June 30,                     June 30,
                                  ------------------------     ------------------------
                                     1997          1996           1997          1996
                                  ---------      ---------      ---------     ---------

<S>                               <C>            <C>            <C>           <C>      
Sales .........................   $  58,288      $  60,446      $ 135,318     $ 112,132
Cost of sales .................      31,239         33,920         74,022        62,983
                                  ---------      ---------      ---------     ---------
Gross margin ..................      27,049         26,526         61,296        49,149
                                  ---------      ---------      ---------     ---------
Operating expenses:
    Research and development ..       4,464          3,371          8,524         6,495
    Selling and marketing .....      16,020         10,971         36,448        18,234
    General and administrative        2,355          2,133          5,245         3,819
                                  ---------      ---------      ---------     ---------
                                     22,839         16,475         50,217        28,548
                                  ---------      ---------      ---------     ---------
Income from operations ........       4,210         10,051         11,079        20,601
Other income, net .............         691            557          1,150           957
                                  ---------      ---------      ---------     ---------
Income before income taxes.....       4,901         10,608         12,229        21,558
Provision for income taxes ....       1,860          4,243          4,791         8,623
                                  ---------      ---------      ---------     ---------

Net income ....................   $   3,041      $   6,365      $   7,438     $  12,935
                                  =========      =========      =========     =========

Earnings per share ............   $    0.22      $    0.42      $    0.52     $    0.86
                                  =========      =========      =========     =========

Weighted average shares........      13,999         15,196         14,339        15,106
                                  =========      =========      =========     =========

<FN>
       The accompanying notes are an integral part of these financial statements.
</FN>
</TABLE>
<PAGE>


                               CIDCO INCORPORATED
                             STATEMENT OF CASH FLOWS
                            (in thousands, unaudited)
                                                            Six months ended
                                                                June 30,
                                                             1997        1996
                                                          ---------    --------

Cash flows provided by operating activities:
   Net income .........................................   $   7,438    $ 12,935
     Adjustments to reconcile net income to net cash
     provided by (used in) operating activities:
     Depreciation and amortization.....................       3,153       2,514
     Loss on sale or disposal of equipment.............         242           -
     Equity in losses of affiliate ....................       1,237           -
     Changes in assets and liabilities:
       Accounts receivable ............................      10,105        (239)
       Inventories ....................................       6,470       4,217
       Other current assets ...........................         455        (899)
       Other assets ...................................        (112)     (5,176)
       Accounts payable ...............................      (2,846)      5,090
       Accrued liabilities ............................       3,137       1,524
       Accrued taxes payable ..........................        (676)        499
                                                          ---------   ---------
           Net cash provided by operating activities ..      28,603      20,465
                                                          ---------   ---------
Cash flows used in investing activities:
   Acquisition of property and equipment ..............      (1,880)     (2,209)
   Purchase of short-term investments, net ............      (2,419)    (19,900)
                                                          ---------   ---------
           Net cash used in investing activities ......      (4,299)    (22,109)
                                                          ---------   ---------
Cash flows provided by (used in) financing activities:
   Issuance of common stock ...........................         862       1,929
   Treasury stock purchases............................     (12,942)          -
   Long-term debt .....................................           -     150,000
                                                          ---------   ---------
   Net cash provided by (used in) financing activities.     (12,080)    151,929
                                                          ---------   ---------
Net increase in cash and cash equivalents .............      12,224     150,285
Cash and cash equivalents at beginning of period ......      26,509      19,290
                                                          ---------   ---------
Cash and cash equivalents at end of period ............   $  38,733   $ 169,575
                                                          =========   =========
Supplemental disclosure of cash flow information:
   Cash paid for income taxes .........................  $    5,660   $   8,124
                                                         ==========   =========

Supplemental disclosure of non-cash investing and
   financing activities:
   Unrealized gain (loss) on investments ..............  $      (15)  $     167
                                                         ==========   =========

   The accompanying notes are an integral part of these financial statements.

<PAGE>

                               CIDCO INCORPORATED

                          NOTES TO FINANCIAL STATEMENTS


NOTE 1-- BASIS OF PRESENTATION

          The  accompanying  financial  information  is  unaudited,  but, in the
opinion of  management,  reflects all  adjustments  (which include only normally
recurring  adjustments)  necessary  for a fair  presentation  of  the  Company's
financial  position,   operating  results  and  cash  flows  for  those  periods
presented.  Certain  information and footnote  disclosures  normally included in
financial  statements  prepared in accordance with generally accepted accounting
principles have been condensed or omitted  pursuant to the rules and regulations
of the Securities and Exchange Commission.  The financial  information should be
read in conjunction with the audited financial  statements and notes thereto for
the year ended December 31, 1996 included in the Company's Annual Report on Form
10-K filed with the Securities and Exchange Commission.  Results for the interim
periods are not  necessarily  indicative  of results for the entire  year.  

NOTE 2--RECENT ACCOUNTING PRONOUNCEMENTS

In February 1997, the Financial  Accounting  Standards Board issued Statement of
Financial Accounting  Standards No. 128 ("FAS 128"),  "Earnings Per Share." This
statement is effective for the Company's  quarter ending  December 31, 1997. The
Statement  redefines  earnings  per share under  generally  accepted  accounting
principles.  Under the new standard,  primary  earnings per share is replaced by
basic  earnings  per share and fully  diluted  earnings per share is replaced by
diluted earnings per share.

 The  unaudited  pro forma basic and diluted  earnings per share for the periods
ended June 30, 1997 and 1996 computed in accordance with FAS 128 are as follows:

                                     Three months ended       Six months ended
                                           June 30,               June 30,
                                    -------------------     -------------------
                                      1997       1996         1997        1996
                                    --------    -------     --------     ------
Basic earnings per share........    $   0.22    $  0.45     $   0.52     $ 0.91
Diluted earnings per share......        0.22       0.42         0.52       0.86


In June 1997,  the FASB  issued  Statement  No.  130,  "Reporting  Comprehensive
Income" ("FAS 130"). FAS 130 establishes  standards for reporting  comprehensive
income and its  components in a financial  statement  that is displayed with the
same prominence as other financial  statements.  Comprehensive income as defined
includes  all  changes in equity  (net  assets)  during a period  from  nonowner
sources.  Examples of items to be included in  comprehensive  income,  which are
excluded from net income,  include foreign currency translation  adjustments and
unrealized gain/loss on available-for-sale securities. The disclosure prescribed
by FAS 130 must be made beginning with the first quarter of calendar 1998.

In June 1997, the FASB issued Statement No. 131,  "Disclosures about Segments of
an Enterprise and Related  Information" ("FAS 131"). This statement  establishes
standards for the way companies report  information about operating  segments in
annual  financial   statements.   It  also  establishes  standards  for  related
disclosures about products and services,  geographic areas, and major customers.
The company has not yet  determined  the  impact,  if any, of adopting  this new
standard. The disclosures prescribed by FAS 131 are effective for calendar 1998.

<PAGE>

NOTE 3--COMMON STOCK

On January 27, 1997, the Company announced its plans to purchase up to 1 million
shares of its  outstanding  Common Stock.  As of June 30, 1997,  the Company had
repurchased 1 million shares at an aggregate price of $12.9 million. The Company
does not intend to repurchase additional shares in the foreseeable future.

Item 2. Management's  Discussion and Analysis of Financial Condition and Results
of Operations

The  following  information  should  be read in  conjunction  with  the  interim
financial  statements  and the notes thereto in Part I, Item 1 of this Quarterly
Report.

Background

The  Company's  sales  and   distribution   channels  include  direct  marketing
fulfillment  programs,  standard  fulfillment of telephone  company orders,  and
wholesale  shipments  directly  to  telephone  companies  ("Direct  to  Telco"),
international  accounts,  retail stores  ("Retail"),  and OEM customers.  Direct
marketing  fulfillment programs are sales campaigns run by the Company involving
the use of television and radio advertising, consumer mailings and telemarketing
to sell  services  which  utilize the  Company's  products and are offered as an
agent for the Regional Bell Operating Companies (each an "RBOC") and independent
telephone operating companies (each an "Independent Telco").  Fulfillment sales,
excluding  the direct  marketing  programs,  occur when the Company  receives an
order either  electronically  or through an on-line  transfer of the customer by
the RBOC or  Independent  Telco,  and the Company  ships the  requested  product
directly to the customer. In the case of standard fulfillment sales, the RBOC or
Independent  Telco  generates the order by performing  the marketing  activities
themselves.  Standard  fulfillment sales accounted for 43%, 68% and 50% of sales
in 1996, 1995 and 1994, respectively. Direct marketing fulfillment sales totaled
25%,  2% and 0% of sales in 1996,  1995 and 1994,  respectively.  In the  second
quarter  of 1997,  standard  fulfillment  sales  accounted  for 33% of sales and
direct  marketing  fulfillment  sales totaled 48% of sales. In the first half of
1997, standard fulfillment sales accounted for 36% of sales and direct marketing
fulfillment sales totaled 49% of sales.

This Management's  Discussion and Analysis of Financial Condition and Results of
Operations  contains  forward-looking  statements  which  reflect the  Company's
current  views with  respect  to future  events  which may impact the  Company's
results  of  operations  and  financial  condition.  In this  report,  the words
"anticipates,"   "believes,"   "expects,"   "intends,"   "future"   and  similar
expressions   identify   forward-looking   statements.   These   forward-looking
statements are subject to risks and uncertainties  and other factors,  including
those set forth  below  under  the  caption  "Factors  Which May  Affect  Future
Results," which could cause the actual future results to differ  materially from
historical  results or those described in the  forward-looking  statements.  The
forward-looking   statements  contained  in  this  Management's  Discussion  and
Analysis of Financial  Condition and Results of Operations and made elsewhere by
the  Company  should  be  considered  in  light of these  factors.  Readers  are
cautioned not to place undue reliance on these forward-looking statements, which
speak only as of the date hereof.
<PAGE>

Results of Operations

The following table sets forth for the periods indicated the percentage of sales
represented by certain line items in the Company's income statement:

                                    Three months ended       Six months ended
                                          June 30,               June 30,
                                   -------------------      -------------------
                                     1997       1996          1997        1996
                                   --------   --------      --------     ------
Sales .........................      100.0%      100.0%       100.0%      100.0%
Cost of sales .................       53.6        56.1         54.7        56.2
                                   -------     -------      -------     -------
Gross margin ..................       46.4        43.9         45.3        43.8
                                   -------     -------      -------     -------
Operating expenses:
   Research and development ...        7.7         5.6          6.3         5.8
   Selling and marketing ......       27.5        18.2         26.9        16.3
   General and administrative .        4.0         3.5          3.9         3.4
                                   -------     -------      -------     -------
                                      39.2        27.3         37.1        25.5
                                   -------     -------      -------     -------

Income from operations ........        7.2        16.6          8.2        18.3
Other income, net..............        1.2         0.9          0.8         0.9
                                   -------     -------      -------     -------
Income before income taxes ....        8.4        17.5          9.0        19.2
Provision for income taxes ....        3.2         7.0          3.5         7.7
                                   -------     -------      -------     -------
Net income ....................        5.2%       10.5%         5.5%       11.5%
                                   =======     =======      =======     =======

Sales

Sales are recognized  upon shipment of the product to the customer less reserves
for anticipated  returns or retention of certain services  provided by the RBOCs
and customer  credit  worthiness.  Sales  decreased  4% to $58.3  million in the
second  quarter of 1997 from $60.4 million in the second  quarter of 1996.  This
decrease  was  primarily  due to a  decrease  in unit  sales of  phones  sold to
Ameritech  and  Southwestern  Bell  customers  and a  decline  in  sales  to the
Company's retail channel. These declines were partially offset by increased unit
sales of adjunct products  through the Company's  direct marketing  programs for
Caller ID  services on behalf of GTE as well as  standard  fulfillment  sales to
NYNEX  customers.  In the first half of 1997,  sales were $135.3 million,  a 21%
increase over sales of $112.1 million for the same period in 1996. This increase
was primarily due to strong first quarter  results from  increased unit sales of
adjunct products  through the Company's direct marketing  programs for Caller ID
services  on behalf  of  Southwestern  Bell and GTE as well as  strong  standard
fulfillment  sales to US West and  NYNEX  customers.  Ameritech,  the  Company's
second largest customer in 1996,  discontinued selling the Company's products in
the second  quarter of 1997.  The Company  believes that  Ameritech  will not be
making any significant  purchases for the remainder of 1997. The overall average
sales  price was $35 per unit both in the  second  quarter  and in the first six
months of 1997 versus $40 per unit and $42 per unit in the respective periods in
1996. This reduction in average sales prices during the second quarter and first
half of 1997 as compared to the same  periods in 1996  resulted  from changes in
the overall mix of unit sales during these  periods.  During the second  quarter
and first half of 1996 sales of the Company's  phone products  (which  generally
carry a higher  average  selling  price  than the  Company's  adjunct  products)
decreased  from 19% and 30%,  respectively,  of sales to 4% of sales during both
the second quarter and first half of 1997.
<PAGE>

Gross margin

Cost of sales includes  primarily the cost of finished goods  purchased from the
Company's offshore contract  manufacturers,  costs associated with procuring and
warehousing the Company's inventory and royalties payable on licensed technology
used in the Company's products.  Gross margin as a percentage of sales increased
to 46.4% in the second  quarter of 1997 from 43.9% in the same  quarter of 1996.
Gross margin as a percentage of sales increased to 45.3% in the first six months
of 1997  from  43.8%  for the same  period in 1996.  These  increases  primarily
resulted from increased sales through the Company's direct  marketing  programs,
which typically have higher gross margins.  The Company expects gross margins to
vary in the  future  due to changes  in sales mix by  distribution  channel  and
product mix. In addition, the Company anticipates that gross margins may decline
over time as a result of competitive pricing pressures.

Research and development expenses

Research and development  expenses  represent  primarily salaries for personnel,
associated  benefits  and tooling and  supplies  for  research  and  development
activities.  The  Company's  policy is to expense all research  and  development
expenditures  as incurred except for certain  investments for tooling.  Research
and development expenses increased to $4.5 million in the quarter ended June 30,
1997 from $3.4  million in the same quarter of 1996.  Research  and  development
expenses in the six month periods ended June 30, 1997 and 1996 were $8.5 million
and  $6.5  million,  respectively.   These  increases  primarily  resulted  from
increased  spending  on  development  projects,  such as ADSI  phones,  cordless
telephones  and advanced  screen  phones which  provide  access to the Internet.
Specifically,  the Company  recognized $1.2 million of expense in the first half
of 1997  related  to the  Company's  equity  in  losses  of  InfoGear,  which is
developing the software for the Company's initial Internet product.  The Company
expects equity in losses of Infogear to continue at this level for the remainder
of 1997. Research and development expenses as a percentage of sales increased to
7.7% in the quarter ended June 30, 1997 from 5.6% in the like period of 1996 and
to 6.3% in the six months  ended June 30,  1997 from 5.8% in the like  period of
1996. The Company expects that research and  development  spending will increase
slightly during the remainder of 1997.

Selling and marketing expenses

Selling and marketing expenses represent  primarily  personnel costs,  telephone
and electronic data exchange  expenses,  promotional  costs and travel expenses.
Selling and  marketing  expenses  increased to $16 million in the quarter  ended
June 30,  1997  from  $10.9  million  in the  comparable  period  of 1996.  As a
percentage of sales,  selling and marketing  expenses  increased to 27.5% in the
quarter  ended June 30, 1997 from 18.2% in the like  period of 1996.  In the six
months ended June 30, 1997, selling and marketing expenses were $36.4 million or
26.9% of sales  versus  $18.2  million  or 16.3% of sales in the same  period of
1996. These increases were due principally to the Company's  increased promotion
of intelligent  network  services  through several direct mail,  direct response
television and telemarketing  campaigns,  resulting in increased advertising and
telemarketing  agency  costs.  The Company  expects that  selling and  marketing
expenses as a percentage  of sales will remain at these higher levels due to the
anticipated  continued  reliance  on  direct  marketing  activities  during  the
remainder of 1997.

General and administrative expenses

General and administrative  expenses represent primarily salaries,  benefits and
other expenses  associated with the finance and administrative  functions of the
Company.  General and  administrative  expenses increased to $2.4 million in the
quarter ended June 30, 1997 from $2.1 million in the comparable  period of 1996.
As a percentage of sales, general and administrative  expenses increased to 4.0%
in the quarter ended June 30, 1997 from 3.5% in the  comparable  period of 1996.
These increases  reflect increased legal and recruiting costs. In the six months
ended June 30, 1997,  general and  administrative  expenses were $5.2 million or
3.9% of sales  versus $3.8  million or 3.4% of sales in the same period of 1996.
In addition to the second quarter  increases year to date numbers  reflect a one
time  charge  on  contractually  obligated  expenses  incurred  as  part  of the
relinquishment of day-to-day duties of certain  executives which occurred in the
first  quarter of 1997.  The Company  believes  that general and  administrative
expenditures will remain  approximately the same as a percentage of sales during
the remainder of 1997.
<PAGE>

Provisions for income taxes

The  provisions  for income taxes in the  quarters  ended June 30, 1997 and 1996
reflect rates of 38% and 40%,  respectively.  The provisions for income taxes in
the six  months  ended  June 30,  1997 and  1996  reflect  rates of 39% and 40%,
respectively.

Liquidity and capital resources

The Company's cash, cash equivalents and short-term  investments increased $14.6
million  during  the six  months  ended  June  30,  1997  primarily  due to cash
generated by operating  activities  of $28.6  million,  offset by the  Company's
repurchase of one million  shares of its Common Stock for an aggregate  purchase
price of $12.9  million and  acquisitions  of  property  and  equipment  of $1.9
million.  Cash generated by operations of $28.6 million resulted  primarily from
net income of $7.4  million,  decreases in accounts  receivable of $10.1 million
and  inventories of $6.5 million and an increase in accrued  liabilities of $3.1
million.  The Company had working  capital of $108.5 million as of June 30, 1996
as compared to $110.5 million at December 31, 1996. The Company's  current ratio
was 5.6 to 1 both at June 30, 1997 and December 31, 1996.  The Company  believes
that cash, cash  equivalents and short term  investments will remain at the same
levels for the remainder of 1997.

The Company has a credit line of $25 million  which is secured by the  Company's
assets.  The interest rate on the line is the bank's prime rate less 0.25%.  The
Company had not borrowed any funds under the line as of June 30, 1997.

Capital  expenditures in 1997 (which are budgeted to be approximately $5 million
during the  remaining six months of 1997) are expected to be funded from working
capital  currently  available.  The  Company  believes  its current  cash,  cash
equivalents,  short-term  investments  and  line  of  credit  will  satisfy  the
Company's  working  capital and capital  expenditure  requirements  for the next
twelve months.

Factors That May Affect Future Results

The  Company  has  experienced  and  may in the  future  experience  significant
fluctuations  in sales and  operating  results  from quarter to quarter due to a
variety of factors.  These factors  include:  the timing of the adoption  and/or
initiation  of Caller ID,  Caller ID on Call  Waiting,  ADSI and other  services
(collectively,  "Services")  by RBOCs,  Independent  Telco's  and other  service
providers on a system-wide or regional basis;  the timing of significant  orders
for the Company's  products;  the extent to which RBOCs and  Independent  Telcos
promote Services and fluctuations in such promotional activities; the success of
the Company's own direct marketing  programs,  in particular,  deriving adequate
sales volumes and control of related costs; the addition or loss of distribution
channels  or  outlets;  changes in service  charges  for  Services;  new product
introductions by the Company or its  competitors;  technical  difficulties  with
RBOC and  Independent  Telco networks;  changes in the Company's  product mix or
sales mix by distribution channel that may affect sales prices, margins or both;
future   expansion  of  the  Company's   marketing   and  services   operations;
technological  difficulties and resource  constraints  encountered in developing
and introducing new products; disruption in sources of supply, manufacturing and
product  delivery;  changes  in  material  costs;  regulatory  changes;  general
economic  conditions,  competitive  pressures and other  factors.  The Company's
operating  expenses are based on anticipated sales levels, and a high percentage
of such expenses are relatively  fixed.  Because the Company has minimal backlog
and its sales in each quarter  results  primarily  from orders  received in that
quarter, variations in the timing of major orders for the Company's products can
cause significant fluctuations in operating result from quarter to quarter.

<PAGE>

PART II.      OTHER INFORMATION
Item 1.       Legal Proceedings
              Not Applicable

Item 2.       Changes in Securities
              Not Applicable

Item 3.       Defaults Upon Senior Securities
              Not Applicable

Item 4.       Submission of Matters to a Vote of Security Holders

              (a) The Company held its 1997 Annual  Meeting of  Stockholders  on
                  May 29, 1997.  Proxies for the meeting were solicited pursuant
                  to Regulation 14A. At the close of business on the record date
                  for the  meeting  (which  was  April  29,  1997),  there  were
                  13,987,086  shares of the  Company's  common  stock issued and
                  outstanding  and entitled to vote at the  meeting.  Holders of
                  12,811,501 shares of the Company's common stock  (representing
                  a like number of votes) were present at the meeting, either in
                  person or by proxy.

              (b) The  Company's  Board  of  Directors  is  divided  into  three
                  classes,  with  Directors in each class serving for three-year
                  terms.  Accordingly,  not all  Directors  are  elected at each
                  Annual Meeting of Stockholders.  Paul G. Locklin and Joseph A.
                  Graziano  were  re-elected  as  Directors  at the 1997  Annual
                  Meeting of  Stockholders.  The other  Directors whose terms of
                  office continued after the meeting are Daniel L. Eilers, Scott
                  C. McDonald, Richard M. Moley and Ernest K. Jacquet.

              (c) The matters  described  below were voted on at the 1997 Annual
                  Meeting  of  Stockholders,  and the  number of votes cast with
                  respect to each matter and,  with  respect to the  election of
                  Directors, for each nominee, were as indicated.

                  (1)    To elect  two Class C  Directors  of the  Company  to
                         serve for a three-year term.
                         
                         PAUL G. LOCKLIN
                         For: 12,329,189; Withheld: 482,315

                         JOSEPH A. GRAZIANO
                         For: 12,328,736; Withheld: 482,765

                  (2)    To  approve  an  amendment  increasing  the number of
                         shares of the  Company's  common stock  available for
                         issuance  under the  Company's  Amended and  Restated
                         1993 Stock Option Plan by 750,000 shares.

                         For:    6,537,288;   Against:   2,957,644;   Abstain:
                                 42,856; Broker Non-Votes: 3,273,713.

                  (3)    To  approve   amendments   to  the   Company's   1994
                         Directors' Stock Option Plan increasing the number of
                         shares of the  Company's  common stock  available for
                         issuance   under  the  Plan  by  150,000  shares  and
                         providing  for  the  automatic  acceleration  of  the
                         vesting of all options  granted under the Plan in the
                         event of a change of control of the Company.

                         For:    8,955,757; Against: 745,824; Abstain: 45,258;
                                 Broker Non-Votes: 3,064,662.

                  (4)    To ratify the appointment of Price  Waterhouse LLP as
                         independent  auditors  of the  Company for the fiscal
                         year  ending  December  31,  1997.  For:  12,762,569;
                         Against: 26,528; Abstain: 22,404.
<PAGE>

Item 5.       Other Information
              Not Applicable

Item 6.       Exhibits and Reports on Form 8-K

              (a) Exhibits
                  See Index to Exhibits at page 12 below.

              (b) Reports on Form 8-K.
                  The  Company  filed no  reports  on Form 8-K  during the three
                  months ended June 30, 1997.

<PAGE>

                                   SIGNATURES

                  Pursuant to the requirements of the Securities Exchange Act of
1934,  the  Registrant has duly caused this report to be signed on its behalf by
the undersigned thereunto duly authorized.

                                          CIDCO INCORPORATED


August 14, 1997                       By:/s/Daniel L. Eilers
- ---------------                           ------------------
     Date                                 Daniel L. Eilers
                                          President and Chief Executive Officer


August 14, 1997                           /s/Richard D. Kent
- ---------------                           ------------------
     Date                                 Richard D. Kent
                                          Vice President, Finance
                                          and Chief Financial Officer
<PAGE>
<TABLE>
                               CIDCO INCORPORATED

                                INDEX TO EXHIBITS
<CAPTION>
   Exhibits                                                                             Page
   --------                                                                             ----
       <S>      <C>                                                                     <C>
       3.1      Amended and Restated Certificate of Incorporation. (1)                    --

       3.2      Amended and Restated By-Laws.                                             16

       4.1      Second  Amendment  to  Revolving  Credit Loan  Agreement  dated
                October 13, 1995 between Registrant and Comerica Bank. (4)                --

      10.4      Patent  License  Agreement  dated as of May 1, 1989 between the
                 Registrant and American Telephone and Telegraph Company. (1)             --

      10.5      Form of Indemnification Agreement. (1)                                    --

      10.13     Agreement effective as of December 21, 1992 between the
                Registrant and SBC Communications. (1), (2)                               --

      10.14     Lease dated  August 15, 1993  between  Thoits  Bros.,  Inc.
                and the  Registrant  for 220 Cochrane Circle. (1)                         --

      10.16     Lease dated May 31, 1994,  between Thoits Bros., Inc. and the
                Registrant for 225 Cochrane Circle, Units A, B, C, D, and E.(4)           --

      10.17     Sublease  dated  November  18, 1994,  between  Thoits Bros. 
                and the  Registrant  for 180 Cochrane Circle.(3)                          --

      10.18     Lease dated  November 1, 1994,  between  Thoits Bros.,  Inc. for
                105 and the  RegistrantCochrane Circle, Units A, B, C, D, and E.(3)       --

      10.19     Registrant's Amended and Restated 1993 Stock Option Plan. (1)             --

      10.20     Registrant's 1994 Directors' Stock Option Plan, as amended.               22

      10.21     Registrant's 1994 Employee Stock Purchase Plan. (1)                       --

      10.22     Agreement dated January 1, 1995 between the Registrant and 
                Ameritech Services, Inc. (5)                                              --

      10.23     Standard Form of Office Lease between  Registrant and 400
                Columbus Avenue,  LCC dated May 19, 1995. (5)                             --

      10.24     Employment Agreement dated June 28, 1996 between Registrant
                and Ian Laing. (6)                                                        --

      10.25     Employment Agreement dated July 29, 1996 between Registrant
                and Marv Tseu. (6)                                                        --

      10.26     Employment Agreement dated December 16, 1996 between Registrant
                and Richard D. Kent. (6)                                                  --

      10.27     Employment Agreement dated March 17, 1997 between Registrant and
                Daniel L. Eilers. (6)                                                     --

      10.28     Option Agreement dated March 12, 1997 between Registrant and
                Daniel L. Eilers. (6)                                                     --

      10.29     1997 Annual Executive Incentive Plan.                                     34

      11.1      Computation of Earnings Per Share.                                        38
</TABLE>
<PAGE>
(1)    Incorporated herein by reference to the Company's  registration statement
       on Form S-1, Registration File No.33-74114.

(2)    Confidential  treatment has been granted with respect to certain portions
       of this document.

(3)    Incorporated  herein by reference to the Company's Form 10-K for the year
       ended December 31, 1994.

(4)    Incorporated  herein  by  reference  to the  Company's  Form 10-Q for the
       quarter ended September 30, 1995.

(5)    Incorporated  herein  by  reference  to the  Company's  Form 10-Q for the
       quarter ended June 30, 1996

(6)    Incorporated  herein  by  reference  to the  Company's  Form 10-Q for the
       quarter ended March 31, 1997.

<PAGE>



                               CIDCO INCORPORATED

                        1994 DIRECTORS' STOCK OPTION PLAN
                    (as amended effective as of May 29, 1997)


         1.        Purposes of the Plan. The purposes of this  Directors'  Stock
                   Option  Plan are to attract  and  retain  the best  available
                   personnel for service as Directors of CIDCO Incorporated (the
                   "Company"),  to provide  additional  incentive to the outside
                   Directors  of the  Company  to  serve  as  Directors,  and to
                   encourage their continued  service on the Board.  All options
                   granted hereunder shall be "nonstatutory stock options."

         2.       Definitions.As  used herein,  the following  definitions shall
                  apply:

                  (a)  "Board" shall mean the Board of Directors of the Company.

                  (b)   "Code" shall mean the Internal  Revenue Code of 1986, as
                        amended.

                  (c)   "Common  Stock" shall mean the Common  Stock,  par value
                        $.01 per share, of the Company.

                  (d)   "Company"  shall  mean  CIDCO  Incorporated,  a Delaware
                        corporation.

                  (e)   "Continuous Status as a Director" Shall mean the absence
                        of any  interruption  or  termination  of  service  as a
                        Director.

                  (f)  "Director" shall mean a member of the Board.

                  (g)   "Effective  Date"  shall mean the date on which the Plan
                        is approved by the stockholders of the Company.

                  (h)   "Employee" shall mean any person, including officers and
                        Directors,  employed  by the  Company  or any  Parent or
                        Subsidiary  of the Company.  The payment of a director's
                        fee by the  Company  shall not be  sufficient  in and of
                        itself to constitute "employment" by the Company.

                  (i)   "Exchange Act" shall mean the Securities Exchange Act of
                        1934, as amended.

                  (j)   "Option" shall mean a stock option  granted  pursuant to
                        the Plan.
                  (k)   "Optioned  Stock" shall mean the Common Stock subject to
                        an Option.

                  (l)   "Optionee"  shall mean an Outside  Director who receives
                        an option.

                  (m)   "Outside  Director"  shall mean a Director who is not an
                        Employee.
<PAGE>
                  (n)   "Parent" shall mean a "parent corporation",  whether now
                        or hereafter  existing,  as defined in Section 424(e) of
                        the Code.

                  (o)  "Plan" shall mean this 1994 Directors' Stock Option Plan.

                  (p)   "Share"  shall  mean a share  of the  Common  Stock,  as
                        adjusted  in  accordance  with  Section  11 of the Plan.

                  (q)   "Subsidiary"  shall  mean  a  "subsidiary  corporation",
                        whether now or hereafter existing, as defined in Section
                        424(f)of the Code.

         3.        Stock  Subject  to the Plan.  Subject  to the  provisions  of
                   Section  11 of the  Plan,  the  maximum  aggregate  number of
                   Shares  which  may be  optioned  and sold  under  the Plan is
                   250,000  Shares (the "Pool").  The Shares may be  authorized,
                   but unissued, or reacquired Common Stock.

                   If an Option  should expire or become  unexercisable  for any
                   reason without having been exercised in full, the unpurchased
                   Shares  which were  subject  thereto  shall,  unless the Plan
                   shall have been terminated, become available for future grant
                   under the Plan.  If Shares which were  acquired upon exercise
                   of an Option are  subsequently  repurchased  by the  Company,
                   such  Shares  shall not in any event be  returned to the Plan
                   and shall not become  available  for future  grant  under the
                   Plan.

         4.       Administration of and Grants of Options under the Plan.

                  (a)   Administrator.  Except as otherwise required herein, the
                        Plan shall be administered by the Board.

                  (b)   Powers  of the  Board.  Subject  to the  provisions  and
                        restrictions of the Plan, the Board (with any interested
                        director  being  excluded  from   participating  in  the
                        consideration of the grant of options to such interested
                        director)  shall have the authority,  in its discretion:
                        (i)  to  determine  which  Outside  Directors  shall  be
                        granted Options and to determine the number of Shares to
                        be covered by Options granted to Outside Directors; (ii)
                        to determine, upon review of relevant information and in
                        accordance  with  Section  8(b) of the  Plan,  the  fair
                        market value of the Common Stock; (iii) to determine the
                        exercise price per share of Options to be granted, which
                        exercise  price shall be determined  in accordance  with
                        Section 8(a) of the Plan;  (iv) to determine the vesting
                        schedule  and other terms of Options to be granted;  (v)
                        to  interpret  the Plan;  (vi) to  prescribe,  amend and
                        rescind  rules  and  regulations  relating  to the Plan;
                        (vii) to  authorize  any  person to execute on behalf of
                        the Company any  instrument  required to effectuate  the
                        grant of an Option  previously  granted  hereunder;  and
                        (viii) to make all other determinations deemed necessary
                        or advisable for the administration of the Plan.

                  (c)   Effect   of    Board's    Decision.    All    decisions,
                        determinations and interpretations of the Board shall be
                        final and binding on all Optionees and any other holders
                        of any Options granted under the Plan.
<PAGE>
                  (d)   Suspension or Termination of Option. If the President of
                        the Company  (the  "President")  or his or her  designee
                        reasonably  believes  that an Optionee has  committed an
                        act  of  misconduct,   the  President  may  suspend  the
                        Optionee's  right  to  exercise  any  option  pending  a
                        determination by the Board of Directors  (excluding,  if
                        relevant,   the   Outside   Director   accused  of  such
                        misconduct).  If the Board of Directors  (excluding,  if
                        relevant,   the   Outside   Director   accused  of  such
                        misconduct)  determines an Optionee has committed an act
                        of  embezzlement,  fraud,  dishonesty,  nonpayment of an
                        obligation owed to the Company, breach of fiduciary duty
                        or deliberate  disregard of Company  rules  resulting in
                        loss, damage or injury to the Company, or if an Optionee
                        makes an  unauthorized  disclosure  of any Company trade
                        secret  or  confidential  information,  engages  in  any
                        conduct  constituting  unfair  competition,  induces any
                        Company  customer to breach a contract  with the Company
                        or induces any  principal  for whom the Company  acts as
                        agent to terminate such agency relationship, neither the
                        Optionee  nor his or her  estate  shall be  entitled  to
                        exercise   any  option   whatsoever.   In  making   such
                        determination,  the Board of  Directors  (excluding,  if
                        relevant,   the   Outside   Director   accused  of  such
                        misconduct) shall act fairly and shall give the Optionee
                        an  opportunity  to  appear  and  present   evidence  on
                        Optionee's  behalf  at a hearing  before  the Board or a
                        committee of the Board.

         5.       Eligibility. Options may be granted only to Outside Directors.
                  An Outside  Director who has been granted an Option may, if he
                  or  she  is  otherwise  eligible,  thereafter  be  granted  an
                  additional Option or Options in accordance with the Plan.

                  The Plan shall not  confer  upon any  Optionee  any right with
                  respect to continuation of service as a Director or nomination
                  to serve as a Director, nor shall it interfere in any way with
                  any  rights  which the  Director  or the  Company  may have to
                  terminate his or her directorship at any time.

         6.       The Term of  Plan;  Effective  Date.  The  Plan  shall  become
                  effective on the Effective  Date and shall  continue in effect
                  for a term of ten (10) years unless  sooner  terminated  under
                  Section 13 of the Plan,  subject to the  limitations set forth
                  in the Plan.

         7.       Term of Option.  The term of each  Option  shall be five years
                  from the date of grant thereof.

         8.       Exercise Price and Consideration.

                  (a)   Exercise  Price.  The per Share  exercise  price for the
                        Shares to be issued  pursuant  to  exercise of an Option
                        shall be 100% of the fair market  value per Share on the
                        date of grant of the Option.
<PAGE>
                  (b)   Fair Market Value. The fair market value per Share shall
                        be the mean of the bid and asked  prices  of the  Common
                        Stock  in the  over-the-counter  market  on the  date of
                        grant,  as reported in The Wall Street  Journal  (or, if
                        not so reported,  as otherwise  reported by the National
                        Association of Securities  Dealers  Automated  Quotation
                        ("NASDAQ")  System)  or,  in the event  that the  Common
                        Stock is traded on the NASDAQ  National Market System or
                        listed on a stock  exchange,  the fair market  value per
                        Share  shall be the closing  price on the  largest  such
                        system or  exchange  on the date of grant of the Option,
                        as  reported  in  The  Wall  Street  Journal,  provided,
                        however,  that if such  market or  exchange is closed on
                        the date of the grant of the Option then the fair market
                        value per Share  shall be based on the most  recent date
                        on which such trading occurred  immediately prior to the
                        date of the grant of the Option; provided, further, that
                        if  the  fair  market  value  cannot  be  determined  in
                        accordance with the forgoing,  it shall be determined in
                        good faith by the Board.

                  (c)   Form of  Consideration.  Options  granted under the Plan
                        may  provide for the  payment of the  exercise  price by
                        delivery of (i) cash or a check  payable to the order of
                        the Company in an amount equal to the exercise  price of
                        such options,  (ii) a promissory note in an amount equal
                        to the exercise  price of such options,  (iii) shares of
                        Common Stock of the Company owned by the optionee having
                        a fair  market  value  equal in amount  to the  exercise
                        price  of the  options  being  exercised,  or  (iv)  any
                        combination of (i), (ii) and (iii),  provided,  however,
                        that  payment of the  exercise  price by  delivery  of a
                        promissory note or shares of Common Stock of the Company
                        owned  by such  optionee  may be made  only  under  such
                        circumstances,  if any,  and on such  terms  as may from
                        time to time  be  established  by the  Board.  The  fair
                        market value of any shares of the Company's Common Stock
                        which may be delivered  upon exercise of an option shall
                        be determined  by the Board in  accordance  with Section
                        8(b) hereof.

         9.       Exercise of Option.

                  (a)   Procedure for  Exercise;  Rights as a  Shareholder.  Any
                        Option  granted  hereunder  shall be exercisable at such
                        times  as are  determined  by the  Board  at the time of
                        grant  and  set  forth  in  an   option   agreement   as
                        contemplated by Section 16 hereof.

                  An Option may not be exercised for a fraction of a Share.
<PAGE>
                  An Option shall be deemed to be exercised  when written notice
                  of such  exercise has been given to the Company in  accordance
                  with  the  terms  of the  Option  by the  person  entitled  to
                  exercise  the Option  and full  payment  for the  Shares  with
                  respect to which the Option is exercised  has been received by
                  the Company. Full payment may consist of any consideration and
                  method of payment  allowable  under  Section 8(c) of the Plan.
                  Until the issuance (as evidenced by the  appropriate  entry on
                  the  books of the  Company  or of a duly  authorized  transfer
                  agent of the Company) of the stock certificate evidencing such
                  Shares,  no right to vote or  receive  dividends  or any other
                  rights  as a  shareholder  shall  exist  with  respect  to the
                  Optioned Stock,  notwithstanding the exercise of the Option. A
                  share  certificate  for the number of Shares so acquired shall
                  be  issued  to the  Optionee  as  soon  as  practicable  after
                  exercise  of the  Option.  No  adjustment  will be made  for a
                  dividend  or other right for which the record date is prior to
                  the date the stock  certificate is issued,  except as provided
                  in Section 11 of the Plan.

                  Exercise of an Option in any manner shall result in a decrease
                  in the number of Shares  which  thereafter  may be  available,
                  both for  purposes  of the Plan and for sale under the Option,
                  by the number of Shares as to which the Option is exercised.

                  (b)   Termination  of  Status  as a  Director.  If an  outside
                        Director  ceases to serve as a Director,  he or she may,
                        but only  within 30 days (or such  other  period of time
                        not  exceeding  six (6) months as is  determined  by the
                        Board)  after the date he or she ceases to be a Director
                        of the Company, exercise his or her Option to the extent
                        that he or she was  entitled  to exercise it at the date
                        of such termination.  Notwithstanding the foregoing,  in
                        no event may the Option be exercised  after its term set
                        forth in Section 7 has expired.  To the extent that such
                        Outside  Director was not entitled to exercise an Option
                        at the date of such  termination,  or does not  exercise
                        such Option  (which he or she was  entitled to exercise)
                        within  the time  specified  herein,  the  Option  shall
                        terminate  unless  otherwise  provided  in this  Section
                        9(b).

                  Notwithstanding the foregoing,  in the event that, following a
                  Hostile  Change of Control  (as  defined  herein),  an Outside
                  Director  optionee  is  removed  as a  Director  prior  to the
                  completion of his then current term, all  outstanding  options
                  held by such  Outside  Director  shall be subject to immediate
                  acceleration,  and any shares which are not vested at the time
                  of such removal shall  immediately  vest in full and he or she
                  may exercise his or her option within six (6) months after the
                  date he or she ceases to be a Director of the Company.
<PAGE>
                  (c)   Disability of Optionee.  Notwithstanding  the provisions
                        of Section 9(b) above, in the event a Director is unable
                        to continue  his or her  service as a Director  with the
                        Company  as a result of his or her  total and  permanent
                        disability (as defined in Section 22(e)(3) of the Code),
                        he or she may,  but only  within six (6) months (or such
                        lesser  period of time as is  determined  by the  Board)
                        from the date of such  termination,  exercise his or her
                        Option to the extent he or she was  entitled to exercise
                        it at the date of such termination.  Notwithstanding the
                        foregoing, in no event may the Option be exercised after
                        its term set  forth in  Section  7 has  expired.  To the
                        extent that he or she was not  entitled to exercise  the
                        Option at the date of termination,  or if he or she does
                        not exercise  such Option  (which he or she was entitled
                        to  exercise)  within  the time  specified  herein,  the
                        Option shall terminate.

                  (d)   Death  of  Optionee.  In the  event  of the  death of an
                        Optionee:

                            (i)  during  the term of the  Option  who is, at the
                                 time of his or her  death,  a  Director  of the
                                 Company  and who shall have been in  Continuous
                                 Status as a Director since the date of grant of
                                 the Option, the Option may be exercised, at any
                                 time  within  six (6)  months  (or such  lesser
                                 period of time as is  determined  by the Board)
                                 following the date of death,  by the Optionee's
                                 estate or by a person who acquired the right to
                                 exercise the Option by bequest or  inheritance,
                                 but only to the extent of the right to exercise
                                 that  would  have   accrued  had  the  Optionee
                                 continued  living and  remained  in  Continuous
                                 Status as a  Director  for six (6)  months  (or
                                 such lesser  period of time as is determined by
                                 the   Board)   after   the   date   of   death.
                                 Notwithstanding the foregoing,  in no event may
                                 the  Option  be  exercised  after  its term set
                                 forth in Section 7 has expired.

                            (ii) within  30  days  after  the   termination   of
                                 Continuous Status as a Director, the Option may
                                 be exercised, at any time within six (6) months
                                 (or such lesser period of time as is determined
                                 by the Board)  following the date of death,  by
                                 the  Optionee's  estate  or  by  a  person  who
                                 acquired  the right to  exercise  the Option by
                                 bequest or inheritance,  but only to the extent
                                 of the right to  exercise  that had  accrued at
                                 the date of  termination.  Notwithstanding  the
                                 foregoing,  in  no  event  may  the  option  be
                                 exercised after its term set forth in Section 7
                                 has expired.
<PAGE>
         10.  Nontransferability  of  Options.  The  Option  may  not  be  sold,
              pledged, assigned,  hypothecated,  transferred,  or disposed of in
              any  manner  other  than  by will or by the  laws  of  descent  or
              distribution. The designation of a beneficiary by an Optionee does
              not constitute a transfer.  An Option may be exercised  during the
              lifetime  of an  Optionee  only by the  Optionee  or a  transferee
              permitted by this Section.

         11.  Adjustments Upon Changes in Capitalization  or Merger.  Subject to
              any required action by the shareholders of the Company, the number
              of shares of Common Stock covered by each outstanding  Option, and
              the number of shares of Common  Stock  which have been  authorized
              for  issuance  under the Plan but as to which no Options  have yet
              been  granted  or  which  have  been  returned  to the  Plan  upon
              cancellation or expiration of an Option,  as well as the price per
              share of Common  Stock  covered by each such  outstanding  Option,
              shall be proportionately  adjusted for any increase or decrease in
              the number of issued shares of Common Stock resulting from a stock
              split,  reverse  stock  split,  stock  dividend,   combination  or
              reclassification  of the Common  Stock,  or any other  increase or
              decrease in the number of issued  shares of Common Stock  effected
              without  receipt  of  consideration  by  the  Company;   provided,
              however,  that  conversion  of any  convertible  securities of the
              Company shall not be deemed to have been "effected without receipt
              of  consideration."  Such  adjustment  shall be made by the Board,
              whose  determination  in that respect shall be final,  binding and
              conclusive.  Except as expressly  provided herein,  no issuance by
              the  Company  of  shares  of stock  of any  class,  or  securities
              convertible into shares of stock of any class,  shall affect,  and
              no adjustment by reason thereof shall be made with respect to, the
              number or price of shares of Common Stock subject to an Option.

              In the event of the proposed  dissolution  or  liquidation  of the
              Company,  the  Option  will  terminate  immediately  prior  to the
              consummation of such proposed action, unless otherwise provided by
              the Board.  The Board may, in the exercise of its sole  discretion
              in such instances, declare that any Option shall terminate as of a
              date  fixed by the  Board  and give  each  Optionee  the  right to
              exercise  his or her Option as to all or any part of the  Optioned
              Stock,  included Shares as to which the Option would not otherwise
              be  exercisable.  In the event of a proposed sale or conveyance of
              all or  substantially  all of the  assets of the  Company,  or the
              merger  or  consolidation  of the  Company  with or  into  another
              corporation,  each  outstanding  Option  shall  be  assumed  or an
              equivalent   option  shall  be   substituted   by  the   successor
              corporation   or  a  Parent  or   Subsidiary   of  the   successor
              corporation.  In the event that such successor corporation refuses
              to assume such Option or to substitute an equivalent option,  such
              Option may, at the  discretion  of the Board,  accelerate  in full
              upon the  consummation of the merger or sale of assets.  The Board
              shall also have the power and right,  but not the  obligation,  to
              accelerate the exercisability of any options,  notwithstanding any
              limitations  in this  Plan upon a Change in  Control  (as  defined
              herein). In the event of a Change in Control of the Company,  each
              outstanding option under this Plan shall automatically  accelerate
              in full and unvested  shares shall vest in full  immediately.  For
              purposes of this Plan,  a "Change in  Control"  shall be deemed to
              have occurred if any person,  or any two or more persons acting as
              a group,  and all affiliates of such person or persons,  who prior
              to such time  owned  less  than  fifty  percent  (50%) of the then
              outstanding  Common  Stock  of the  Company,  shall  acquire  such
              additional  shares of the  Company's  Common  Stock in one or more
              transactions, or series of transactions,  such that following such
              transaction or  transactions,  such person or group and affiliates
              beneficially  own more than fifty  percent  (50%) of the Company's
              Common Stock outstanding.
<PAGE>
              12.  Time of  Granting  Options.  The date of  grant of an  Option
              shall,  for all purposes,  be the date when the Board approves the
              grant of such  Option.  Notice of the grant of an Option  shall be
              given to each  Outside  Director  to whom an Option is so  granted
              within a reasonable time after the date of such grant.

              13. Amendment and Termination of the Plan.

                   (a) Amendment  and  Termination.   The  Board  may  amend  or
                       terminate  the Plan from time to time in such respects as
                       the  Board  may deem  advisable;  provided  that,  to the
                       extent  necessary and desirable to comply with Rule 16b-3
                       under the  Exchange Act (or any other  applicable  law or
                       regulation),  the Company  shall  obtain  approval of the
                       shareholders  of the  Company to Plan  amendments  to the
                       extent  and  in  the  manner  required  by  such  law  or
                       regulation.

                   (b)Effect of Amendment or Termination.  Any such amendment or
                       termination  of the Plan that would  impair the rights of
                       any Optionee shall not affect Options  already granted to
                       such Optionee and such Options shall remain in full force
                       and  effect  as if this  Plan  had not  been  amended  or
                       terminated,  unless mutually agreed otherwise between the
                       Optionee  and  the  Board,  which  agreement  must  be in
                       writing and signed by the Optionee and the Company.

         14.  Conditions  Upon  Issuance of Shares.  Shares  shall not be issued
              pursuant to the exercise of an Option  unless the exercise of such
              Option and the  issuance  and  delivery  of such  Shares  pursuant
              thereto  shall  comply  with  all  relevant   provisions  of  law,
              including,  without  limitation,  the  Securities  Act of 1933, as
              amended,  the Exchange Act, the rules and regulations  promulgated
              thereunder,  state  securities  laws, and the  requirements of any
              stock exchange upon which the Shares may then be listed, and shall
              be further subject to the approval of counsel for the Company with
              respect to such compliance.

              As a  condition  to the  exercise  of an Option,  the  Company may
              require the person exercising such Option to represent and warrant
              at the  time of any  such  exercise  that  the  Shares  are  being
              purchased only for investment and without any present intention to
              sell or distribute such Shares,  if, in the opinion of counsel for
              the  Company,  such a  representation  is  required  by any of the
              aforementioned relevant provisions of law.

              Inability of the Company to obtain  authority  from any regulatory
              body  having  jurisdiction,  which  authority  is  deemed  by  the
              Company's  counsel to be necessary to the lawful issuance and sale
              of  any  Shares  hereunder,  shall  relieve  the  Company  of  any
              liability  in respect of the  failure to issue or sell such Shares
              as to which such requisite authority shall not have been obtained.
<PAGE>
         15.      Reservation  of Shares.  The Company,  during the term of this
                  Plan, will at all times reserve and keep available such number
                  of Shares as shall be sufficient  to satisfy the  requirements
                  of the Plan.

         16.      Option Agreement. Options shall be evidenced by written option
                  agreements in such form as the Board shall approve.

         17.      Information  to  Optionees.  The Company shall provide to each
                  Optionee, during the period for which such Optionee has one or
                  more  Options  outstanding,  copies of all  annual  reports to
                  shareholders,  proxy statements and other information provided
                  to all shareholders of the Company.
<PAGE>



                              AMENDED AND RESTATED

                                     BY-LAWS
                                       OF
                               CIDCO INCORPORATED
                             a Delaware corporation
                                 (the "Company")
                       (as amended through April 16, 1997)

                                TABLE OF CONTENTS


                                                                          Page
ARTICLE I.   STOCKHOLDERS

          Section 1.1          Annual Meeting.............................   1
          Section 1.2          Special Meetings...........................   1
          Section 1.3          Notice of Meetings.........................   1
          Section 1.4          Quorum.....................................   2
          Section 1.5          Voting.....................................   2
          Section 1.6          Presiding Officer and Secretary............   2
          Section 1.7          Proxies....................................   2
          Section 1.8          List of Stockholders.......................   3
          Section 1.9          Actions Without a Meeting..................   3

ARTICLE II.  DIRECTORS

          Section 2.1          Number of Directors........................   4
          Section 2.2          Election and Term of Directors.............   4
          Section 2.3          Vacancies and Newly Created
                               Directorships..............................   4
          Section 2.4          Resignation................................   5
          Section 2.5          Meetings...................................   5
          Section 2.6          Quorum and Voting..........................   5
          Section 2.7          Written Consents and Meetings by
                               Telephone..................................   6
          Section 2.8          Compensation...............................   6
          Section 2.9          The "Whole Board"..........................   6
          Section 2.10         Chairman of the Board......................   6

ARTICLE III. COMMITTEES OF THE BOARD

          Section 3.1          Appointment and Powers.....................   6

<PAGE>
ARTICLE IV.  OFFICERS, AGENTS AND EMPLOYEES

          Section 4.1          Appointment and Qualification..............   7
          Section 4.2          Removal of Officers, Agents or
                               Employees..................................   7
          Section 4.3          Compensation and Bond......................   8
          Section 4.4          President..................................   8
          Section 4.5          Vice President - Finance and
                                  Administration..........................   8
          Section 4.6          Other Vice Presidents......................   9
          Section 4.7          Treasurer..................................   9
          Section 4.8          Secretary..................................   9
          Section 4.9          Assistant Treasurers.......................   9
          Section 4.10         Assistant Secretaries......................  10
          Section 4.11         Delegation of Duties.......................  10

ARTICLE V.    CAPITAL STOCK

          Section 5.1          Certificates ..............................  10
          Section 5.2          Transfers of Stock.........................  10
          Section 5.3          Lost, Stolen or Destroyed
                               Certificates...............................  11
          Section 5.4          Stockholder Record Date....................  11

ARTICLE VI.   SEAL

          Section 6.1          Seal......................................   12

ARTICLE VII.  WAIVER OF NOTICE

          Section 7.1          Waiver of Notice..........................   12

ARTICLE VIII. INDEMNIFICATION

          Section 8.1          Indemnification...........................   12
          Section 8.2          Determinations ...........................   13
          Section 8.3          Business Combinations.....................   14
          Section 8.4          Advances of Expenses......................   14
          Section 8.5          Employee Benefit Plans....................   14

ARTICLE IX.   AMENDMENTS

          Section 9.1          Amendments................................   14
<PAGE>

                              AMENDED AND RESTATED
                       (as amended through April 16, 1997)

                                     BY-LAWS

                                       OF

                               CIDCO INCORPORATED
                             a Delaware corporation
                                 (the "Company")


                             Article I. Stockholders

                   Section  1.1.   Annual   Meeting.   The  annual   meeting  of
stockholders  of the  Company,  for  the  election  of  directors  and  for  the
transaction of any other business which may properly be transacted at the annual
meeting, shall be held at such hour on such day and at such place within or with
out the State of Delaware as may be fixed by the Board of Directors.

                   Section  1.2.  Special  Meetings.  A special  meeting  of the
stockholders of the Company entitled to vote on any business to be considered at
any such  meeting  may be called by the  President,  any Vice  President  or the
Secretary  when  directed to do so by resolution of the Board of Directors or at
the written  request of directors  representing a majority of the Whole Board or
at the written  request of the holders of stock  representing  a majority of the
voting power of the Company  entitled to vote at such meeting.  Any such request
shall state the purpose or purposes of the proposed meeting.

                   Section 1.3.  Notice of Meetings.  (a) Whenever  stockholders
are required or permitted to take any action at a meeting,  a written  notice of
the meeting  shall be given  which  shall state the place,  date and hour of the
meeting,  and, in the case of a special  meeting,  the  purpose or purposes  for
which the meeting is called.

                   (b) Unless  otherwise  provided by law,  and except as to any
stockholder  duly waiving  notice,  the written  notice of any meeting  shall be
given  personally or by mail, not less than ten nor more than 60 days before the
date of the meeting to each  stockholder  entitled to vote at such  meeting.  If
mailed,  notice shall be deemed given when  deposited in the United States mail,
postage prepaid, directed to the stockholder at such stockholder's address as it
appears on the stock records of the Company.

                   (c) When a meeting is  adjourned  to  another  time or place,
notice need not be given of the adjourned  meeting if the time and place thereof
are announced at the meeting at which the adjournment is taken. At the adjourned
meeting the Company may transact any business  which might have been  transacted
at the original meeting.  If, however, the adjournment is for more than 30 days,
or if  after  the  adjournment  a new  record  date is fixed  for the  adjourned
meeting, a notice of the adjourned meeting shall be given to each stockholder of
record entitled to vote at the meeting.

                   Section 1.4. Quorum.  Except as otherwise  provided by law in
respect of the vote of holders of stock that shall be  required  for a specified
action,  at any  meeting of  stockholders  the holders of stock  representing  a
majority of the voting  power of the Company  entitled to vote  thereat,  either
present or represented by proxy,  shall  constitute a quorum for the transaction
of any business, but the stockholders present,  although less than a quorum, may
adjourn the meeting to another time or place and,  except as provided in Section
1.3(c) of these By-Laws, notice need not be given of the adjourned meeting.

                   Section 1.5. Voting. (a) Whenever directors are to be elected
at a meeting,  they shall be  elected  by a  plurality  of the votes cast at the
meeting by the holders of stock entitled to vote thereat. Whenever any corporate
action,  other  than  the  election  of  directors,  is to be  taken  by vote of
stockholders at a meeting,  it shall,  except as otherwise required by law or by
the  certificate  of  incorporation  or by these  By-Laws,  be  authorized  by a
majority of the votes cast at the  meeting by the  holders of stock  entitled to
vote thereat.
<PAGE>
                   (b) Except as otherwise provided by law or by the certificate
of incorporation, each holder of record of stock of the Company entitled to vote
on any matter  shall be  entitled  to one vote for each  share of capital  stock
standing  in the name of such  holder on the stock  ledger of the Company on the
record date for the  determination of the stockholders  entitled to vote on such
matter.

                   Section  1.6.  Presiding  Officer  and  Secretary.  At  every
meeting of stockholders the President,  or, in the President's absence, any Vice
President,  or, if none be present, the appointee of the meeting, shall preside.
The Secretary,  or in the Secretary's absence an Assistant Secretary, or if none
be present, the appointee of the presiding officer of the meeting,  shall act as
secretary of the meeting.

                   Section 1.7. Proxies.  Each stockholder entitled to vote at a
meeting of stockholders or to express consent or dissent to corporate  action in
writing  without a meeting may  authorize  another  person or persons to act for
such  stockholder by proxy, but no such proxy shall be voted or acted upon after
three years from its date, unless the proxy provides for a longer period.  Every
proxy  shall  be  signed  by  the  stockholder  or by  such  stockholder's  duly
authorized  attorney.  A proxy  that does not bear a date  shall be deemed to be
dated the date it was first delivered to one or more of the persons named to act
under such proxy.

                   Section 1.8.  List of  Stockholders.  (a) The officer who has
charge of the stock ledger of the Company  shall  prepare and make, at least ten
days before every meeting of  stockholders,  a complete list of the stockholders
entitled to vote at the meeting,  arranged in alphabetical order and showing the
address  of each  stockholder  and  the  number  of  shares  registered  in such
stockholder's  name.  Such  list  shall  be  open  to  the  examination  of  any
stockholder  entitled to vote at the  meeting,  for any  purpose  germane to the
meeting, during ordinary business hours, for a period of at least ten days prior
to the  meeting,  either at a place  within the city where the  meeting is to be
held, which place shall be specified in the notice of the meeting, or, if not so
specified,  at the place where the meeting is to be held. The list shall also be
produced  and kept at the time and place of the  meeting  during  the whole time
thereof, and may be inspected by any stockholder entitled to vote at the meeting
who is present.

                   (b) The stock ledger shall be the only evidence as to who are
the stockholders entitled to examine the stock ledger, the list required by this
Section 1.8 or the books of the Company, or to vote in person or by proxy at any
meeting of stockholders.

                   Section 1.9. Actions Without a Meeting.  Until the closing of
a firm commitment or underwritten  public offering of the Company's Common Stock
(a "Public  Offering"),  any action  required  or  permitted  to be taken at any
annual or special  meeting of the holders of Common  Stock of the Company may be
taken without a meeting,  without prior notice and without a vote, if consent in
writing,  setting  forth  the  action so taken,  is  signed  by the  holders  of
outstanding stock having not less than the minimum number of votes that would be
necessary  to  authorize  or take such  action at a meeting  at which all shares
entitled  to vote on such action were  present and voted.  Prompt  notice of the
taking of  corporate  action  without a meeting by less than  unanimous  written
consent  shall be given to those  stockholders  who have not  consented  to such
action in writing.  Effective  upon and after the closing of a Public  Offering,
corporate  action  required to be taken at any annual or special  meeting of the
holders of Common Stock of the Company may not be taken by written instrument in
lieu of such a meeting.  Any such attempted  corporate action by written consent
of the  holders of Common  Stock of the  Company in lieu of a meeting  after the
closing of a Public Offering is prohibited and shall be null and void.
<PAGE>
                              Article II. Directors

                   Section  2.1.  Number of  Directors.  The Board of  Directors
shall consist of such number of persons,  not less than five nor more than nine,
and the exact number of directors shall be six until changed,  within the limits
specified  above, by the  affirmative  vote at a meeting of the holders of stock
representing  a majority of the voting power of the Company or by  resolution of
the Board of Directors,  adopted by a majority of the Whole Board; provided that
the number of  directors  shall not be reduced so as to shorten  the term of any
director in office at the time.  The  indefinite  number of directors  specified
above may be changed, or a definite number may be fixed without provision for an
indefinite  number, by the affirmative vote at a meeting of the holders of stock
representing a majority of the voting power of the Company,  provided,  however,
that no  amendment  or  amendments  adopted  in any year may  change  the stated
maximum  number of authorized  directors to a number  greater than two times the
stated  minimum number of directors at the beginning of such year minus one and,
provided,  further,  that the number of directors  shall not be reduced so as to
shorten the term of any  director in office at the time.  The Board of Directors
of the Company shall be divided into three classes,  designated Class A, Class B
and Class C. Each class shall consist, as nearly as is reasonably  possible,  of
one-third of the total number of directors  constituting the Whole Board. If the
number of directors is changed,  any increase or decrease  shall be  apportioned
among the classes so as to  maintain  the number of  directors  in each class as
nearly equal as possible.

                   Section 2.2. Election and Term of Directors.  Directors shall
be elected annually at the annual meeting of  stockholders.  Each director shall
hold office until such  director's  successor is elected and  qualified or until
such  director's  earlier  resignation  or  death.  If the  annual  election  of
directors is not held on the date designated therefor, the directors shall cause
such election to be held as soon  thereafter as  convenient.  At the 1994 annual
meeting of  stockholders,  Class A directors shall be elected for a 1-year term,
Class B directors  for a 2-year term and Class C directors for a 3-year term. At
each succeeding annual meeting of stockholders  beginning in 1995, successors to
the class of  directors  whose term  expires  at that  annual  meeting  shall be
elected for a 3-year term.

                   Section  2.3.  Vacancies  and  Newly  Created  Directorships.
Vacancies and newly  created  directorships  resulting  from any increase in the
authorized  number  of  directors  may be  filled by  election  at a meeting  of
stockholders.  Vacancies and such newly created directorships may also be filled
by a majority of the directors then in office,  although less than a quorum,  or
by a sole remaining  director.  Any additional  director of any class elected to
fill a vacancy  resulting from an increase in such class shall hold office for a
term that shall coincide with the remaining  term of that class,  but in no case
will a decrease in the number of  directors  shorten the term of any director in
office at the time.  Any vacancy on the Board of Directors  that results from an
increase in the number of directors  may be filled by a majority of the Board of
Directors  then in  office,  and any  other  vacancy  occurring  in the Board of
Directors may be filled by a majority of the directors then in office,  although
less than a quorum,  or by a sole remaining  director.  Any director  elected to
fill a vacancy not resulting  from an increase in the number of directors  shall
have the same remaining term as that of his predecessor.

                   Section 2.4. Resignation. Any director may resign from office
at any time either by oral tender of  resignation at any meeting of the Board or
by oral tender to the President,  any Vice President or by giving written notice
to the Secretary of the Company.  Any such resignation  shall take effect at the
time it  specifies  or,  if the time be not  specified,  upon  receipt,  and the
acceptance  of such  resignation,  unless  required  by its terms,  shall not be
necessary to make such resignation effective.
<PAGE>
                   Section  2.5.  Meetings.  Meetings  of the Board,  regular or
special,  may be held at any place within or without the State of  Delaware.  An
annual meeting of the Board for the  appointment of officers and the transaction
of any other business shall be held immediately  following the annual meeting of
stockholders  at the same place at which such meeting shall have been held,  and
no notice  thereof  need be given.  If the  meeting  is not so held,  the annual
meeting  of the Board  shall take place as soon  thereafter  as is  practicable,
either at the next  regular  meeting of the Board or at a special  meeting.  The
Board may fix times and places for  regular  meetings of the Board and no notice
of such  meetings  need be given.  A special  meeting of the Board shall be held
whenever called by the Chairman of the Board, the President,  any Vice President
or by any two  directors  (except  that if more  than one  meeting  be called by
directors in any period of 180 days or less,  each such meeting so called may be
called  only by a  majority  of the  directors  then in office) at such time and
place as shall be  specified  in the  notice or waiver  thereof.  Notice of each
special  meeting  shall be given by the  Secretary  or by a person  calling  the
meeting to each director by mailing the same, first class postage  prepaid,  not
later than the second day before the meeting,  or personally or by telegraphing,
sending by telephone  facsimile or  telephoning  the same not later than the day
before the meeting.

                   Section 2.6. Quorum and Voting. A majority of the Whole Board
of Directors shall  constitute a quorum for the transaction of business  (except
as  otherwise  provided by Section 2.3  hereof),  but in no event shall a quorum
consist  of less  than two  directors.  If there  be less  than a quorum  at any
meeting of the Board,  a majority  of the  directors  present  may  adjourn  the
meeting  from time to time,  and no further  notice  thereof need be given other
than  announcement  at the  meeting  which  shall  be so  adjourned.  Except  as
otherwise  provided  by law or by these  By-Laws,  the act of a majority  of the
directors  present at a meeting at which a quorum is present shall be the act of
the Board of Directors.

                   Section 2.7. Written Consents and Meetings by Telephone.  Any
action  required  or  permitted  to be  taken  at any  meeting  of the  Board of
Directors or any committee thereof may be taken without a meeting if all members
of the  Board  or of such  committee,  as the case may be,  consent  thereto  in
writing and the writing or writings are filed with the minutes of proceedings of
the Board or  committee.  Members  of the Board of  Directors  or any  committee
designated by the Board may  participate in a meeting of such Board or committee
by means of conference telephone or similar communications equipment by means of
which  all  persons  participating  in the  meeting  can hear  each  other,  and
participation in a meeting  pursuant to this sentence shall constitute  presence
in person at such meeting.

                   Section 2.8. Compensation. Directors may receive compensation
for  services to the Company in their  capacities  as  directors or otherwise in
such manner and in such amounts as may be fixed from time to time by the Board.

                   Section 2.9. The "Whole Board".  As used in these By-Laws the
term "the Whole Board" or "the Whole Board of Directors"  means the total number
of directors which the Company would have if there were no vacancies.

                   Section 2.10.  Chairman of the Board. The Board may from time
to time  designate  from among its  members a Chairman  of the Board,  who shall
preside at all  meetings of the Board at which the  Chairman is present  (unless
the Chairman  shall  delegate such duties to the  President or another  director
with  respect to a particular  meeting of the Board).  The Chairman of the Board
shall  have  such  further  powers  and  perform  such  other  duties  as may be
prescribed  by the Board.  The  Chairman  of the Board  shall not,  by virtue of
designation as such, be considered an officer of the Company.


                      Article III. Committees of the Board

                   Section 3.1.  Appointment and Powers.  The Board of Directors
may from time to time,  by  resolution  passed by a majority of the Whole Board,
designate an executive committee or such other committee or committees as it may
determine,  each  committee to consist of one or more  directors of the Company.
Any such committee, to the extent provided in the resolution, shall have and may
exercise  any of the  powers  and  authority  of the Board of  Directors  in the
management  of the business and affairs of the Company,  and may  authorize  the
seal of the  Company  to be  affixed to all  papers  which may  require  it, all
subject to the exceptions set forth in the General  Corporation Law of the State
of Delaware.  The Board may designate one or more directors as alternate members
of any  committee,  who may  replace  any absent or  disqualified  member at any
meeting of the committee.  In the absence or  disqualification  of any member of
any committee and of any alternate member designated by the Board, the member or
members thereof present at any meeting and not disqualified from voting, whether
or not such  member or members  constitute  a quorum,  may  unanimously  appoint
another  member of the Board of  Directors to act at the meeting in place of any
such absent or disqualified member. Any such committee may adopt rules governing
the  method  of  calling  and time and place of  holding  its  meetings.  Unless
otherwise  provided by the Board of Directors,  a majority of any such committee
shall  constitute a quorum for the  transaction  of  business,  and the act of a
majority of the members of such committee present at a meeting at which a quorum
is present shall be the act of such committee.  Each such committee shall keep a
record of its acts and  proceedings  and shall  report  thereon  to the Board of
Directors whenever requested so to do. Any or all members of any such committees
may be removed,  with or without cause, by resolution of the Board of Directors,
adopted by a majority of the Whole Board.
<PAGE>
                   Article IV. Officers, Agents and Employees

                   Section  4.1.  Appointment  and  Qualification.  The Board of
Directors  may elect or appoint a President,  a Treasurer,  a Secretary,  one or
more Vice Presidents, one or more Assistant Treasurers and one or more Assistant
Secretaries.  Any number of offices may be held by the same person. Each officer
shall hold office until such  officer's  successor  is elected and  qualified or
until such officer's earlier resignation or removal.  The Board may appoint, and
may delegate power to appoint,  such other officers,  agents and employees as it
may deem necessary or proper,  who shall hold office for such period,  have such
authority  and perform such duties as may from time to time be prescribed by the
Board.

                   Section 4.2.  Removal of Officers,  Agents or Employees.  Any
officer,  agent or  employee  of the  Company  may be  removed  by the  Board of
Directors  with or without  cause at any time,  and the Board may delegate  such
power of removal as to officers, agents and employees not appointed by the Board
of Directors.  Such removal shall be without prejudice to such person's contract
rights,  if any,  but the  appointment  of any  person as an  officer,  agent or
employee of the Company shall not of itself create contract rights.

                   Section 4.3.  Compensation  and Bond. The compensation of the
officers of the Company shall be fixed by the Board of Directors, but this power
may be  delegated  to any  officer  in  respect  of other  officers  under  such
officer's  direction  or control.  The Company may secure the fidelity of any or
all of its officers, agents or employees by bond or otherwise.

                   Section 4.4.  President.  The President  shall preside at all
meetings of the stockholders at which the President is present and shall preside
at meetings of the Board in the absence of the Chairman or if the Chairman shall
delegate  such duties to the President  with respect to a particular  meeting of
the Board.  The President shall be the chief  executive  officer and, unless the
Board shall designate another officer as such, shall be the principal  operating
officer of the Company. Subject to the control of the Board, the President shall
have  general  charge of the  business and affairs of the Company and shall keep
the Board fully advised.  The President shall employ and discharge employees and
agents of the Company,  except such as shall be appointed by the Board,  and the
President may delegate  these powers to the Vice  Presidents or other  officers.
The President may vote the shares or other  securities of any other  domestic or
foreign  company  of any  type or kind  which  may at any  time be  owned by the
Company, may execute any stockholder or other consent in respect thereof and may
in the  President's  discretion  delegate such powers by executing  proxies,  or
otherwise,  on behalf of the Company.  In the absence or inability to act of the
Chairman of the Board,  unless the Board shall otherwise provide,  the President
shall  perform all the duties and may exercise any of the powers of the Chairman
of the Board,  subject to the control of the Board of  Directors.  The President
shall have such other  powers and perform  such duties as the Board of Directors
may from time to time prescribe. The Board, by resolution from time to time, may
confer other like powers upon any other person or persons.

                   Section 4.5. Vice President - Finance and Administration. The
Vice President - Finance and Administration shall be the chief financial officer
of the Company and shall have charge of all funds and securities of the Company,
shall endorse the same for deposit or collection  when necessary and deposit the
same to the credit of the Company in such banks or  depositories as the Board of
Directors may  authorize.  The Vice President - Finance and  Administration  may
endorse all commercial documents requiring  endorsements for or on behalf of the
Company and may sign all receipts and vouchers for payments made to the Company.
The Vice  President - Finance  and  Administration  shall have all such  further
powers and duties as generally  are incident to the position of chief  financial
officer or as may be assigned to the Vice President - Finance and Administration
by the President or the Board of  Directors.  The  performance  of any such duty
shall, in respect of any person dealing with the Company, be conclusive evidence
of the Vice President - Finance and Administration's power to act.

                   Section 4.6. Other Vice Presidents. Each other Vice President
shall have such powers and perform  such duties as the Board of Directors or the
President may from time to time prescribe. In the absence or inability to act of
the President,  unless the Board of Directors shall otherwise provide,  the Vice
President  who has served in that capacity for the longest time and who shall be
present and able to act,  shall  perform all the duties and may  exercise any of
the powers of the  President.  The  performance  of any duty by a Vice President
shall,  in respect of any other person  dealing with the Company,  be conclusive
evidence of such Vice President's power to act.
<PAGE>
                   Section 4.7. Treasurer.  The Treasurer shall have such powers
and perform  such duties as the Board of  Directors,  the  President or the Vice
President - Finance and Administration  may from time to time prescribe.  In the
absence or inability to act of the Vice President - Finance and  Administration,
the  Treasurer  may  perform all the duties and  exercise  all the powers of the
chief financial  officer.  The performance of any such duty shall, in respect of
any other  person  dealing  with the  Company,  be  conclusive  evidence  of the
Treasurer's power to act.

                   Section  4.8.  Secretary.  The  Secretary  shall  record  all
proceedings  of meetings of the  stockholders  and  directors in a book kept for
that  purpose and shall file in such book all written  consents of  directors to
any action taken without a meeting. The Secretary shall attend to the giving and
serving of all notices of the Company.  The Secretary  shall have custody of the
seal of the Company and shall  attest the same by signature  whenever  required.
The  Secretary  shall have  charge of the stock  ledger and such other books and
papers as the Board of Directors may direct, but may delegate responsibility for
maintaining the stock ledger to any transfer agent  appointed by the Board.  The
performance of any such duty shall,  in respect of any other person dealing with
the  Company,  be  conclusive  evidence  of the  Secretary's  power to act.  The
Secretary  shall  have all such  further  powers  and  duties as  generally  are
incident to the position of Secretary or as may be assigned to the  Secretary by
the President, any Vice President or the Board of Directors.

                   Section  4.9.  Assistant   Treasurers.   In  the  absence  or
inability  to act of the Vice  President  - Finance and  Administration  and the
Treasurer,  any Assistant  Treasurer may perform all the duties and exercise all
the powers of the Vice President - Finance and Administration and the Treasurer.
The  performance of any such duty shall,  in respect of any other person dealing
with the Company, be conclusive evidence of such Assistant  Treasurer's power to
act. An  Assistant  Treasurer  shall also  perform such other duties as the Vice
President  Finance and  Administration,  the Treasurer or the Board of Directors
may assign to such person.

                   Section  4.10.  Assistant  Secretaries.  In  the  absence  or
inability to act of the Secretary,  any Assistant  Secretary may perform all the
duties and exercise all the powers of the Secretary. The performance of any such
duty  shall,  in  respect  of any other  person  dealing  with the  Company,  be
conclusive  evidence of such  Assistant  Secretary's  power to act. An Assistant
Secretary  shall also perform such other duties as the Secretary or the Board of
Directors may assign to such person.

                   Section 4.11. Delegation of Duties. In case of the absence of
any  officer of the  Company,  or for any other  reason  that the Board may deem
sufficient, the Board may confer for the time being the powers or duties, or any
of them,  of such officer  upon any other  officer or upon any director or other
person designated by the Board.

                            Article V. Capital Stock

                   Section  5.1.  Certificates.  Certificates  for  stock of the
Company  shall be in such forms as shall be approved  by the Board of  Directors
and shall be  signed in the name of the  Company  by the  President  or any Vice
President and by the Treasurer or an Assistant  Treasurer or the Secretary or an
Assistant  Secretary.  Such  certificates  may be  sealed  with  the seal of the
Company  or a  facsimile  thereof,  and shall  contain  such  information  as is
required by law to be stated  thereon.  Any of or all of the  signatures  on the
certificate may be a facsimile. In case any officer, transfer agent or registrar
who has signed or whose  facsimile  signature has been placed upon a certificate
shall have ceased to be such officer,  transfer  agent or registrar  before such
certificate  is issued,  it may be issued by the Company with the same effect as
if such person were such  officer,  transfer  agent or  registrar at the date of
issue.
<PAGE>
                   Section 5.2. Transfers of Stock.  Transfers of stock shall be
made only  upon the books of the  Company  by the  holder,  in person or by duly
authorized attorney, and on the surrender of the certificate or certificates for
such stock  properly  endorsed.  The Board of Directors  shall have the power to
make all such rules and regulations,  not  inconsistent  with the certificate of
incorporation  and these By-Laws,  as the Board may deem appropriate  concerning
the issue,  transfer and  registration of certificates for stock of the Company.
The Board may appoint one or more transfer agents or registrars of transfers, or
both, and may require all stock  certificates to bear the signature of either or
both,  which  signature or signatures  may be in facsimile  form if the Board by
resolution authorizes such procedure.

                   Section  5.3.  Lost,  Stolen or Destroyed  Certificates.  The
Company  may  issue a new  stock  certificate  in the  place of any  certificate
theretofore  issued by it, alleged to have been lost,  stolen or destroyed,  and
the Company may require the owner of the lost,  stolen or destroyed  certificate
or such owner's legal  representative  to give the Company a bond  sufficient to
indemnify  it against  any claim  that may be made  against it on account of the
alleged loss,  theft or destruction  of any such  certificate or the issuance of
any such new  certificate.  The Board may  require  such owner to satisfy  other
reasonable requirements.

                   Section 5.4.  Stockholder  Record Date. (a) In order that the
Company may determine the  stockholders  entitled to notice of or to vote at any
meeting of  stockholders  or any  adjournment  thereof,  or  entitled to express
consent to corporate action in writing without a meeting, or entitled to receive
payment of any dividend or other  distribution  or  allotment of any rights,  or
entitled to exercise any rights in respect of any change, conversion or exchange
of stock, or for the purpose of any other lawful action,  the Board of Directors
may fix, in  advance,  a record  date,  which shall not be more than 60 nor less
than ten days  before the date of such  meeting,  nor more than 60 days prior to
any other action.  Only such  stockholders as shall be stockholders of record on
the date so fixed shall be  entitled to notice of, and to vote at, such  meeting
and any  adjournment  thereof,  or to express  consent  or dissent to  corporate
action in writing  without a meeting,  or to receive payment of such dividend or
other  distribution,  or to exercise  such rights in respect of any such change,
conversion or exchange of stock,  or to participate in such action,  as the case
may be, not  withstanding  any transfer of any stock on the books of the Company
after any record date so fixed.

                   (b) If no record date is fixed by the Board of Directors, (i)
the record date for determining stockholders entitled to notice of or to vote at
a meeting of stock  holders  shall be at the close of  business  on the day next
preceding  the  date on  which  notice  is  given,  (ii)  the  record  date  for
determining  stockholders  entitled to express  consent to  corporate  action in
writing  without a meeting,  when no prior  action by the Board of  Directors is
necessary, shall be the day on which the first written consent is expressed, and
(iii) the record date for determining  stockholders  for any other purpose shall
be at the close of  business on the day on which the Board of  Directors  adopts
the resolution relating thereto.

                   (c) A  determination  of  stockholders  of record entitled to
notice of or to vote at a meeting of stockholders shall apply to any adjournment
of the meeting;  provided, that the Board of Directors may fix a new record date
for the adjourned meeting.

                                Article VI. Seal

                   Section 6.1. Seal. The seal of the Company shall consist of a
flat-faced  circular  die with the name of the  Company in a circle and the word
"Delaware"  and the year of its  incorporation  in the center.  Such seal may be
used by causing it or a facsimile  thereof to be  impressed or affixed or in any
other manner reproduced.

<PAGE>
                          Article VII. Waiver of Notice

                   Section 7.1. Waiver of Notice. Whenever notice is required to
be given by statute,  or under any provision of the certificate of incorporation
or these By-Laws,  a written waiver  thereof,  signed by the person  entitled to
notice,  whether  before  or after  the time  stated  therein,  shall be  deemed
equivalent to notice. In the case of a stockholder, such waiver of notice may be
signed by such  stockholder's  attorney  or a proxy duly  appointed  in writing.
Attendance of a  stockholder  at a meeting of  stockholders,  or attendance of a
director at a meeting of the Board of Directors or any committee thereof,  shall
constitute a waiver of notice of such meeting,  except when such  stockholder or
director,  as the case may be,  attends a meeting  for the  express  purpose  of
objecting,  at the beginning of the meeting,  to the transaction of any business
because the meeting is not lawfully called or convened.  Neither the business to
be  transacted  at, nor the purpose  of, any  regular or special  meeting of the
stockholders, directors or members of a committee of directors need be specified
in any written waiver of notice.


                          Article VIII. Indemnification

                   Section 8.1.  Indemnification.  The Company  shall  indemnify
each  director,  officer,  employee and agent  (provided,  that,  in the case of
agents,  the  Company  shall  indemnify  only those  agents to whom the Board of
Directors shall determine,  before or after their engagement,  shall be afforded
the  protection  of these  indemnification  provisions)  of the Company who is a
natural person,  such person's heirs,  executors and administrators  (whether or
not  natural  persons)  and all  other  natural  persons  whom  the  Company  is
authorized to indemnify  under the provisions of the General  Corporation Law of
the State of Delaware to whom the Board of Directors  shall  determine  shall be
afforded the protection of these  indemnification  provisions (including but not
limited to a person who is or was  serving  at the  request of the  Company as a
director,  officer,  partner, trustee, employee or agent (or in a like capacity)
of another corporation, partnership, joint venture, trust, employee benefit plan
or other  enterprise),  to the fullest extent  permitted by law, (i) against all
expenses  (including  but not limited to attorneys'  and other experts' fees and
disbursements),  judgments,  fines and amounts paid in  settlement  actually and
reasonably  incurred by such person in connection  with any actual or threatened
action,  suit or other  proceeding,  whether  civil,  criminal,  administrative,
investigative  or an arbitration,  or in connection with any appeal therein,  or
otherwise,  and  (ii)  against  all  expenses  (including  but  not  limited  to
attorneys'  and other experts' fees and  disbursements)  actually and reasonably
incurred by such person in  connection  with the  defense or  settlement  of any
action,  suit or  other  proceeding  by or in the  right of the  Company,  or in
connection  with any appeal  therein,  or  otherwise;  and no provision of these
By-Laws  is  intended  to be  construed  as  limiting,  prohibiting,  denying or
abrogating any of the general or specific  powers or rights  conferred under the
General  Corporation  Law of the  State of  Delaware  or by the  certificate  of
incorporation  of the  Company,  as may be amended  from time to time,  upon the
Company to furnish,  or upon any court to award, such  indemnification,  or such
other  indemnification  as may otherwise be  authorized  pursuant to the General
Corporation  Law of the State of Delaware or any other law now or  hereafter  in
effect,  including but not limited to indemnification of any employees or agents
of the Company or of another  corporation,  partnership,  joint venture,  trust,
employee  benefit  plan or  other  enterprise.  The term  "proceeding"  shall be
understood  to  include  any  inquiry  or  investigation  that  could  lead to a
proceeding.  The  indemnification  provided  for  herein  shall  not  be  deemed
exclusive of any other rights to which a person seeking  indemnification  may be
entitled  and shall  continue  as to a person who has  ceased to be a  director,
officer,  employee  or agent and shall  inure to the  benefit  of such  person's
heirs, executors and administrators.

                   Section  8.2.  Determinations.  If  and to  the  extent  such
indemnification shall require a determination whether or not the relevant person
met the applicable  standard of conduct set forth in the General Corporation Law
of the State of Delaware,  such determination shall be made expeditiously at the
cost of the  Company  after a  request  for the  same  from the  person  seeking
indemnification.  If indemnification is to be given or an advance of expenses is
to be made upon a determination by independent  legal counsel,  such counsel may
be the regular counsel to the Company.  In rendering such opinion,  such counsel
shall be entitled to rely upon  statements of fact  furnished to them by persons
reasonably  believed  by them to be  credible,  and such  counsel  shall have no
liability or  responsibility  for the accuracy of the facts so relied upon,  nor
shall such counsel have any  liability for the exercise of their own judgment as
to  matters  of fact or law  forming a part of the  process  of  providing  such
opinion.  The fees and  disbursements  of counsel engaged to render such opinion
shall be paid by the Company whether or not such counsel  ultimately are able to
render the opinion that is the subject of their engagement.
<PAGE>
                   Section  8.3.  Business  Combinations.  Unless  the  Board of
Directors  shall  determine  otherwise with reference to a particular  merger or
consolidation or other business  combination,  for purposes of this Article VIII
references  to  "the  Company"  shall  include,  in  addition  to the  resulting
corporation,  any  constituent  corporation  (including  any  constituent  of  a
constituent) absorbed in a merger or consolidation or other business combination
which,  if its  separate  existence  had  continued,  would  have had  power and
authority to indemnify its directors, officers, employees or agents, so that any
person who is or was a director,  officer, employee or agent of such constituent
corporation, or is or was serving at the request of such constituent corporation
as a  director,  officer,  partner,  trustee,  employee,  agent  (or  in a  like
capacity) of another corporation,  partnership,  joint venture,  trust, employee
benefit plan or other  enterprise,  shall stand in the same  position  under the
provisions  of this  Article  VIII with  respect to the  resulting  or surviving
corporation  as  such  person  would  have  with  respect  to  such  constituent
corporation if its separate existence had continued.

                   Section  8.4.  Advances of  Expenses.  If a person who may be
entitled to indemnification  hereunder shall request that such person's expenses
actually  and  reasonably   incurred  in  connection  with  any  action,   suit,
proceeding,  arbitration  or  investigation  or  appeal  therein  be paid by the
Company in advance of the final disposition  thereof,  such request shall not be
unreasonably  refused,  and a response to such request shall not be unreasonably
delayed, by the Company.

                   Section 8.5.  Employee  Benefit Plans.  References  herein to
"fines" shall  include any excise taxes  assessed on a person with respect to an
employee benefit plan; and references to "serving at the request of the Company"
shall  include  any service as a corporate  agent  which  imposes  duties on, or
involves  services by, the corporate  agent with respect to an employee  benefit
plan, its participants,  or beneficiaries.  A person who acted in good faith and
in a  manner  such  person  reasonably  believed  to be in the  interest  of the
participants  and  beneficiaries  of an employee benefit plan shall be deemed to
have acted in a manner not opposed to the best interests of the Company.

                             Article IX. Amendments

                   Section 9.1. Amendments.  These By-Laws or any of them may be
altered,  amended or  repealed,  and new By-Laws  may be adopted,  at any annual
meeting of the  stockholders,  or at any  special  meeting  of the  stockholders
called  for that  purpose,  by a vote of a majority  of the voting  power of the
shares  represented  and entitled to vote thereat.  The Board of Directors shall
also have the power, by a majority vote of the Whole Board, to alter or amend or
repeal the By-Laws or any of them,  and to adopt new By-Laws;  provided that (i)
any such  action of the Board of  Directors  may be amended or  repealed  by the
stockholders  at any  annual  meeting  or any  special  meeting  called for that
purpose,  (ii) the Board of Directors shall not have the power to alter or amend
or repeal a specified  By-Law if such By-Law is adopted by the  stockholders and
contains  an  express  provision  that such  By-Law may be altered or amended or
repealed only by action of the stockholders,  (iii) the Board of Directors shall
not have the power to alter,  amend or repeal a By-Law to change the  authorized
number of directors (except to fix the authorized  number of directors  pursuant
to a By-Law providing for a variable number of directors), and (iv) Article VIII
hereof  may be altered or amended  by the Board of  Directors  to  increase  the
indemnification  of the persons  referred to therein to the extent  permitted by
law,  but such  Article may be otherwise  altered,  amended or repealed  only by
action of the  stockholders  as  provided  above and,  in that  connection,  any
repeal,  amendment or alteration which reduces or limits the  indemnification of
the persons referred to therein shall apply  prospectively only and shall not be
given retroactive  effect.  This Article IX may be altered,  amended or repealed
only by action of the stockholders.

<PAGE>



                               CIDCO Incorporated
                        Annual Executive Incentive Plan
                                     -----


         This  document  sets  forth the  CIDCO  Incorporated  Annual  Executive
Incentive Plan as adopted effective January 1, 1997.

1.        Purpose

         The purpose of the Plan is to provide designated officers and other key
employees of CIDCO  Incorporated  (the "Company") with incentive to maximize the
Company's   profitability  by  basing  a  significant  portion  of  their  total
compensation on the achievement of corporate and individual performance goals.

2.        Definitions

         As used herein, the following terms shall have the following meanings:

         "Award"  shall mean an amount earned by the  Participant  in accordance
with the provisions of the Plan.

         "Board of Directors" shall mean the Board of Directors of the Company.

          "Committee"  shall  mean the  Compensation  Committee  of the Board of
Directors.

         "Net Income" shall mean,  with respect to any Performance  Period,  the
Company's net income before tax expense,  as reported in the Company's financial
statements for such  Performance  Period as filed with the  Securities  Exchange
Commission  with the Form 10K or Form 10Q  filing  related  to such  Performance
Period.

         "Participant" shall mean, with respect to any Plan Year, any individual
who has been  designated by the Committee as eligible for  participation  in the
Plan for such year in accordance with Section 3.


         "Performance  Period"  shall mean,  with respect to any Plan Year,  the
calendar year  corresponding  to such year and, if the Committee so  determines,
any one or more calendar quarters within such year.

 "Plan" shall mean the CIDCO  Incorporated  Annual Executive  Incentive Plan, as
set forth herein and as amended from time to time.

         "Plan Year" shall mean the calendar year.

3.        Eligibility

         Any  officer or other  employee of the  Company  shall be eligible  for
participation  in the Plan for a Plan Year if he or she has been  designated  by
the Committee to be a Participant for such year. Each person so designated shall
be notified in writing as soon as practicable  after the Committee has made such
designation.

<PAGE>

4.        Awards

         Awards for any Plan Year shall be made in accordance with the following
provisions:

         (a) By no later than January 31st of the Plan Year, the Committee shall
take the following  actions with respect to  determining  the Awards that may be
payable to Participants for such year:

                  (i) The Committee shall  determine the  Performance  Period or
         Performance Periods that shall apply for the year.

                 (ii) The Committee  shall  establish the Corporate  Performance
         Goal that will apply in  determining  the Awards that may be payable to
         Participants  for  each   Performance   Period  within  the  year.  The
         "Corporate Performance Goal" shall be the Company's achievement of such
         level of Net Income as the  Committee  shall  determine.  The Committee
         shall  have  the   authority  at  any  time  to  adjust  the  Corporate
         Performance Goal, or the standards for measuring the achievement of the
         Corporate  Performance Goal,  established for any Performance Period as
         it  deems  equitable  in  recognition  of  (A)  changes  in  applicable
         accounting  rules or principles or changes in the Company's  methods of
         accounting  during such Performance  Period,  (B) the occurrence during
         such Performance Period of any acquisition, divestiture, discontinuance
         of business  operations,  restructuring  or any other  extraordinary or
         nonrecurring  event,  or (C) such other events,  changes,  occurrences,
         conditions  or  circumstances  as in the  Committee's  judgment,  shall
         warrant such adjustment.

                (iii) For each Performance Period within the year, the Committee
         shall  establish for each  Participant an amount that may be awarded to
         the Participant if the Corporate  Performance Goal for such Performance
         Period is met (the  "Participant's  Target Award").  Each Participant's
         Target  Award shall be an amount equal to such  percentage  of the base
         salary  paid to the  Participant  for such  Performance  Period  as the
         Committee shall determine.

                 (iv) The Committee  shall establish  percentages  ("Performance
         Factors")  that will be applied to  Participants'  Target  Awards,  for
         purposes  of  determining  the amount of their  actual  Awards for each
         Performance  Period  within  the  year,  if the  Company's  Net  Income
         exceeds,  or is less  than,  the  Corporate  Performance  Goal for such
         Performance  Period by specified  amounts  determined by the Committee.
         The potentially  applicable  Performance  Factors for each  Performance
         Period within the year shall be such  percentages  greater than 100% as
         the Committee  determines,  if the Corporate  Performance Goal for such
         Performance Period is exceeded, and shall be such percentages less than
         100% as the Committee determines, if the Corporate Performance Goal for
         such Performance Period is not fully achieved;  provided, however, that
         the Performance  Factor for any Performance Period shall be zero if the
         Company  does not  achieve a level of Net Income that is at least equal
         to such minimum  percentage of the Corporate  Performance Goal for such
         Performance Period as the Committee, in its discretion, may determine.
<PAGE>
                  (v) The notice to be furnished  under Section 3 to each person
         whom the Committee has  designated as a Participant  for the year shall
         set forth the Corporate  Performance  Goal,  the  Participant's  Target
         Award, and the potentially  applicable  Performance  Factors,  that the
         Committee has established for each Performance Period within the year.

         (b) As soon as practicable  after the close of each Performance  Period
within the Plan Year,  the  Committee  shall  determine  the extent to which the
Performance  Goal for such  Performance  Period has been met and, based thereon,
the applicable  Performance Factor for such Performance  Period.  Subject to (c)
below, each Participant shall be entitled to receive an Award in an amount equal
to his or her  Target  Award  for such  Performance  Period,  multiplied  by the
applicable Performance Factor for such Performance Period.

         (c) The  Committee  may,  in its  discretion,  reduce the amount of the
Award  payable  to any  Participant  for any  Performance  Period as  determined
pursuant  to (b)  above,  or  determine  that no Award  shall be  payable to the
Participant for such Performance Period,  based upon the Committee's  evaluation
of the  Participant's  job  performance  for  such  Performance  Period  or upon
consideration  of such other factors or  circumstances  as the  Committee  deems
appropriate.

         (d)  In  addition  to  Awards  based  on  corporate  performance,   the
Committee,  in its discretion,  may provide for an Award to be made hereunder to
any Participant for the year, in such amount as the Committee determines,  based
on the Participant's achievement of such individual performance goal or goals as
the Committee  establishes for the Participant as of the beginning of such year.
The notice to be  furnished  pursuant  to Section 3 to any  Participant  who the
Committee  has  determined to be eligible for an  individual  performance  award
shall  specify  the  amount  of  the  Participant's   potential  Award  and  the
performance goal or goals that he or she must meet to earn such Award.

         (e) Any officer or other  employee who  commences  employment  with the
Company after the start of a Plan Year shall be eligible to receive an Award for
any  Performance  Period  within  such  year  ending  after  such  officer's  or
employee's  date  of  hire  if he or she is  designated  by the  Committee  as a
Participant  for such year in  accordance  with  Section  3. If a  Participant's
employment with the Company terminates for any reason prior to the end of a Plan
Year,  no Award shall be payable to the  Participant  (or in the event of his or
her death to any beneficiary of a Participant) for any Performance Period within
such year ending after such  officer's or employee's  termination  of employment
except as the Committee, in its discretion, may otherwise determine.

5.        Payment of Awards

          The amount  payable with  respect to an Award earned by a  Participant
under the Plan for any  Performance  Period shall be paid to the  Participant as
soon as practicable after the end of such Performance  Period.  Payment shall be
made in the form a single lump sum cash payment.

         The  Company  shall  deduct  from all  amounts  otherwise  payable to a
Participant under the Plan all federal, state, local and other taxes required by
law to be withheld with respect to such amounts.
<PAGE>
6.        Rights of Participants

         A Participant's rights and interests under the Plan shall be subject to
the following provisions:

         (a) A  Participant's  rights to  payments  under the Plan  shall not be
subject in any manner to anticipation,  alienation, sale, transfer,  assignment,
pledge, encumbrance,  attachment, or garnishment by creditors of the Participant
or any beneficiary of the Participant.

         (b) Neither the Plan nor any action taken  hereunder shall be construed
as giving any  Participant  any right to be  retained in the  employment  of the
Company.

         (c) No Employee shall have the right,  by virtue of being a Participant
in the Plan for any Plan Year, to be automatically  entitled to receive an Award
for any  Performance  Period within such year, or to be treated as a Participant
for any later Plan Year.

         (d) No Award shall be  considered  as  compensation  under any employee
benefit plan of the Company,  except as specifically provided in such plan or as
otherwise determined by the Board of Directors.

7.        Administration

         The Plan shall be  administered  by the  Committee.  A majority  of the
members of the Committee shall  constitute a quorum.  The Committee may act at a
meeting,  including a telephone meeting,  by action of a majority of the members
present,  or without a meeting by unanimous written consent.  In addition to the
responsibilities and powers assigned to the Committee elsewhere in the Plan, the
Committee  shall have the authority to establish from time to time guidelines or
regulations for the administration of the Plan, interpret the Plan, and make all
determinations  considered  necessary or advisable for the administration of the
Plan. The Committee may delegate any  ministerial or  nondiscretionary  function
pertaining to the  administration of the Plan to any one or more officers of the
Company.

         All decisions,  actions or  interpretations  of the Committee under the
Plan shall be final, conclusive and binding upon all parties.

         No member of the Committee shall be personally  liable by reason of any
action  taken by such member in good faith in his or her capacity as a member of
the  Committee  nor for any  mistake of  judgment  made in good  faith,  and the
Company shall indemnify and hold harmless each member of the Committee, and each
employee,  officer or director of the Company to whom any duty or power relating
to the  administration or  interpretation of the Plan may be delegated,  against
any cost or expense  (including  counsel fees) or liability  (including  any sum
paid in  settlement  of a claim  with the  approval  of the Board of  Directors)
arising  out of any act or omission  to act in  connection  with the Plan unless
arising out of such person's own fraud or bad faith.
<PAGE>
8.        Amendment or Termination

         The Board of Directors may, with  prospective  or  retroactive  effect,
amend,  suspend  or  terminate  the Plan or any  portion  thereof  at any  time,
provided,  however,  that no amendment,  suspension or  termination  of the Plan
shall deprive any Participant of any rights to Awards  previously made under the
Plan  without  his or her  written  consent.  Any  amendment  that the  Board of
Directors would be permitted to make pursuant to the preceding sentence may also
be made by the Committee where  appropriate to facilitate the  administration of
the  Plan  or to  comply  with  applicable  law  or  any  applicable  rules  and
regulations of government authorities, provided that the cost of the Plan to the
Company is not materially increased thereby.

9.        Governing Law

         The Plan shall be governed by and construed in accordance with the laws
of the State of Delaware.

<PAGE>


                                                                    EXHIBIT 11.1

<TABLE>

                                                CIDCO INCORPORATED
                                         COMPUTATION OF EARNINGS PER SHARE
                                     (in thousands, except per share amounts)
<CAPTION>
                                           Three months ended June 30,   Six months ended June 30,
                                           --------------------------    --------------------------
                                                1997             1996          1997            1996
                                           ---------        ---------    ----------      ----------

<S>                                        <C>              <C>          <C>             <C>       
Net income.............................    $   3,041        $   6,365    $    7,438      $   12,935
                                           =========        =========    ==========      ==========

Weighted average shares outstanding....       13,826           14,377        13,943          14,277
Shares issuable on exercise of options.          173              819           396             829
                                           ---------        ---------    ----------      ----------

Weighted average shares outstanding....       13,999           15,196        14,339          15,106
                                           =========        =========    ==========      ==========

Earnings per share.....................    $    0.22        $    0.42    $     0.52      $     0.86
                                           =========        =========    ==========      ==========
</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     (In thousands, except per share data; unaudited)
</LEGEND>
<CIK>                                       0000917639
<NAME>                              CIDCO Incorporated
       
<S>                                            <C>
<PERIOD-TYPE>                                    3-mos
<FISCAL-YEAR-END>                          Dec-31-1997
<PERIOD-START>                             Apr-01-1997
<PERIOD-END>                               Jun-30-1997
<CASH>                                          38,733
<SECURITIES>                                    40,964
<RECEIVABLES>                                   41,234
<ALLOWANCES>                                     3,097
<INVENTORY>                                      8,085
<CURRENT-ASSETS>                               131,834
<PP&E>                                          12,603
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                 147,571
<CURRENT-LIABILITIES>                           23,382
<BONDS>                                              0
                                0
                                          0
<COMMON>                                           144
<OTHER-SE>                                     124,045
<TOTAL-LIABILITY-AND-EQUITY>                   147,571
<SALES>                                         58,288
<TOTAL-REVENUES>                                58,288
<CGS>                                           31,239
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                                22,839
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  4,901
<INCOME-TAX>                                     1,860
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,041
<EPS-PRIMARY>                                     0.22
<EPS-DILUTED>                                     0.22

        

</TABLE>


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