<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED FINANCIAL STATEMENTS INCLUDED IN THIS 10Q AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 9-MOS 9-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-1999
<PERIOD-START> JAN-01-2000 JAN-01-1999
<PERIOD-END> SEP-30-2000 SEP-30-1999
<CASH> 940 936
<SECURITIES> 16,715 17,955
<RECEIVABLES> 2,393 5,933
<ALLOWANCES> 1,079 1,855
<INVENTORY> 256 1,013
<CURRENT-ASSETS> 21,055 27,050
<PP&E> 4,592 4,478
<DEPRECIATION> (3,171) 2,688
<TOTAL-ASSETS> 23,016 33,564
<CURRENT-LIABILITIES> 5,701 6,446
<BONDS> 0 0
0 0
0 0
<COMMON> 130 130
<OTHER-SE> 17,185 26,599
<TOTAL-LIABILITY-AND-EQUITY> 23,016 33,564
<SALES> 7,846 15,471
<TOTAL-REVENUES> 12,868 21,020
<CGS> 2,592 4,192
<TOTAL-COSTS> 5,780 6,901
<OTHER-EXPENSES> 11,040 18,096
<LOSS-PROVISION> 0 (161)
<INTEREST-EXPENSE> 0 0
<INCOME-PRETAX> (3,141) (3,468)
<INCOME-TAX> 0 (808)
<INCOME-CONTINUING> (3,141) (2,660)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (3,141) (2,660)
<EPS-BASIC> (.25) (.21)
<EPS-DILUTED> (.25) (.21)
</TABLE>