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<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C> <C>
<PERIOD-TYPE> 12-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-1999 DEC-31-1999
<PERIOD-START> JAN-01-1999 JAN-01-2000
<PERIOD-END> DEC-31-1999 JUN-30-2000
<CASH> 45,239,281 30,228,378
<SECURITIES> 0 0
<RECEIVABLES> 2,175,755 7,133,575
<ALLOWANCES> 60,000 60,000
<INVENTORY> 1,901,242 6,203,265
<CURRENT-ASSETS> 49,508,010 46,356,003
<PP&E> 5,061,699 9,149,666
<DEPRECIATION> 1,612,556 2,425,911
<TOTAL-ASSETS> 53,234,480 53,412,298
<CURRENT-LIABILITIES> 4,213,181 11,727,535
<BONDS> 0 0
0 0
17,427 18,900
<COMMON> 909 7,655
<OTHER-SE> 47,655,882 39,659,613
<TOTAL-LIABILITY-AND-EQUITY> 53,234,480 53,412,298
<SALES> 4,667,774 7,214,235
<TOTAL-REVENUES> 4,667,774 7,214,235
<CGS> 3,881,637 5,061,390
<TOTAL-COSTS> 20,422,793 23,224,464
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 522,323 179,374
<INCOME-PRETAX> (19,799,294) (19,444,820)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> (19,799,294) (19,444,820)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (19,799,294) (19,444,820)
<EPS-BASIC> (7.42) (2.00)
<EPS-DILUTED> (7.42) (2.00)
</TABLE>
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