<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S CONDENSED CONSOLIDATED BALANCE SHEET AS OF JUNE 30, 2000, AND THE
RELATED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS FOR THE SIX MONTHS ENDED
JUNE 30, 2000 AND 1999, AND THE NOTES THERETO FROM ITEM 1 OF THE COMPANY'S
QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED JUNE 30, 2000 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS AND NOTES.
</LEGEND>

<S>                             <C>                     <C>
<PERIOD-TYPE>                   6-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000             DEC-31-1999
<PERIOD-START>                             JAN-01-2000             JAN-01-1999
<PERIOD-END>                               JUN-30-2000             JUN-30-1999
<CASH>                                          49,675                       0
<SECURITIES>                                    38,176                       0
<RECEIVABLES>                                    4,655                       0
<ALLOWANCES>                                       136                       0
<INVENTORY>                                      1,968                       0
<CURRENT-ASSETS>                                96,172                       0
<PP&E>                                          14,553                       0
<DEPRECIATION>                                 (2,056)                       0
<TOTAL-ASSETS>                                 155,904                       0
<CURRENT-LIABILITIES>                            8,834                       0
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                            33                       0
<OTHER-SE>                                     143,439                       0
<TOTAL-LIABILITY-AND-EQUITY>                   155,904                       0
<SALES>                                          7,090                       0
<TOTAL-REVENUES>                                 8,060                     807
<CGS>                                            5,445                       0
<TOTAL-COSTS>                                   35,363                  10,157
<OTHER-EXPENSES>                                    76                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                 258                       0
<INCOME-PRETAX>                               (25,547)                 (9,748)
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                           (25,547)                 (9,748)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                  (25,547)                 (9,748)
<EPS-BASIC>                                     (5.52)                 (13.39)
<EPS-DILUTED>                                   (5.52)                 (13.39)


</TABLE>