<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C> <C> <C>
<PERIOD-TYPE> 12-MOS 12-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-1998 DEC-31-1999 DEC-31-2000
<PERIOD-START> JAN-01-1998 JAN-01-1999 JAN-01-2000
<PERIOD-END> DEC-31-1998 DEC-31-1999 JUN-30-2000
<CASH> 17,654 10,562 7,415
<SECURITIES> 5,193 5,470 5,491
<RECEIVABLES> 3,205 1,094 2,178
<ALLOWANCES> (100) (100) (100)
<INVENTORY> 25 56 110
<CURRENT-ASSETS> 26,077 17,211 15,218
<PP&E> 2,086 2,680 2,891
<DEPRECIATION> (535) (964) (1,155)
<TOTAL-ASSETS> 28,520 19,840 17,807
<CURRENT-LIABILITIES> 3,653 6,558 8,028
<BONDS> 0 0 0
0 0 0
11 11 11
<COMMON> 2 2 2
<OTHER-SE> 0 0 0
<TOTAL-LIABILITY-AND-EQUITY> 28,520 19,840 17,807
<SALES> 0 0 0
<TOTAL-REVENUES> 6,279 3,053 2,433
<CGS> 0 0 0
<TOTAL-COSTS> 10,582 14,413 6,331
<OTHER-EXPENSES> 0 0 0
<LOSS-PROVISION> 0 0 0
<INTEREST-EXPENSE> (177) (278) (106)
<INCOME-PRETAX> (6,897) (11,730) (3,602)
<INCOME-TAX> 0 0 0
<INCOME-CONTINUING> (6,897) (11,730) (3,602)
<DISCONTINUED> 0 0 0
<EXTRAORDINARY> 0 0 0
<CHANGES> 0 0 0
<NET-INCOME> (6,897) (11,730) (3,602)
<EPS-BASIC> 0 0 0
<EPS-DILUTED> 0 0 0
</TABLE>