<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM BALANCE
SHEETS AND STATEMENTS OF OPERATIONS FOUND ON PAGES F-3 AND F-4 OF THE COMPANY'S
FORM S-1 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C> <C> <C> <C> <C>
<PERIOD-TYPE> YEAR YEAR YEAR 3-MOS 3-MOS
<FISCAL-YEAR-END> DEC-31-1997 DEC-31-1998 DEC-31-1999 MAR-31-1999 MAR-31-2000
<PERIOD-START> JAN-01-1997 JAN-01-1998 JAN-01-1999 JAN-01-1999 JAN-01-2000
<PERIOD-END> DEC-31-1997 DEC-31-1998 DEC-31-1999 MAR-31-1999 MAR-31-2000
<CASH> 0 14,423 38,513 0 35,238
<SECURITIES> 0 0 0 0 0
<RECEIVABLES> 0 656 1,928 0 2,920
<ALLOWANCES> 0 0 0 0 0
<INVENTORY> 0 0 1,893 0 1,313
<CURRENT-ASSETS> 0 15,223 43,190 0 40,657
<PP&E> 0 2,983 3,835 0 4,160
<DEPRECIATION> 0 (811) (1,695) 0 (1,939)
<TOTAL-ASSETS> 0 26,652 53,023 0 50,253
<CURRENT-LIABILITIES> 0 3,319 5,352 0 5,662
<BONDS> 0 0 0 0 0
0 5,000 45,000 0 45,000
0 0 0 0 0
<COMMON> 0 23 23 0 23
<OTHER-SE> 0 14,185 1,148 0 (1,557)
<TOTAL-LIABILITY-AND-EQUITY> 0 26,652 53,023 0 50,253
<SALES> 0 0 3,053 83 4,115
<TOTAL-REVENUES> 0 0 3,053 83 4,115
<CGS> 0 0 2,739 314 2,607
<TOTAL-COSTS> 0 0 2,739 314 2,607
<OTHER-EXPENSES> 2,077 10,152 15,019 3,381 5,524
<LOSS-PROVISION> 0 0 0 0 0
<INTEREST-EXPENSE> 0 0 0 0 0
<INCOME-PRETAX> (1,268) (9,296) (13,636) (3,458) (3,552)
<INCOME-TAX> 0 0 0 0 0
<INCOME-CONTINUING> (1,268) (9,296) (13,636) (3,458) (3,552)
<DISCONTINUED> (2,638) 0 0 0 0
<EXTRAORDINARY> 0 0 0 0 0
<CHANGES> 0 0 0 0 0
<NET-INCOME> (3,906) (9,296) (13,636) (3,458) (3,552)
<EPS-BASIC> (0.17) (0.40) (0.59) (0.15) (0.15)
<EPS-DILUTED> (0.17) (0.40) (0.59) (0.15) (0.15)
</TABLE>