<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C> <C>
<PERIOD-TYPE> 12-MOS 9-MOS
<FISCAL-YEAR-END> DEC-31-1999 DEC-31-1999
<PERIOD-START> JAN-01-1999 JAN-01-2000
<PERIOD-END> DEC-31-1999 SEP-30-2000
<CASH> 45,239,281 226,713,711
<SECURITIES> 0 0
<RECEIVABLES> 2,175,755 7,207,567
<ALLOWANCES> 60,000 80,000
<INVENTORY> 1,901,242 15,192,076
<CURRENT-ASSETS> 49,508,010 255,080,246
<PP&E> 5,061,699 14,968,921
<DEPRECIATION> 1,612,556 3,146,963
<TOTAL-ASSETS> 53,234,480 311,560,738
<CURRENT-LIABILITIES> 4,213,181 24,810,377
<BONDS> 0 0
0 0
17,427 26,174
<COMMON> 5,455 50,990
<OTHER-SE> 47,651,336 283,959,899
<TOTAL-LIABILITY-AND-EQUITY> 53,234,480 311,560,738
<SALES> 4,642,673 7,073,194
<TOTAL-REVENUES> 4,642,673 7,073,194
<CGS> 3,889,965 7,054,909
<TOTAL-COSTS> 20,600,419 57,202,982
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 522,323 303,649
<INCOME-PRETAX> (20,010,349) (54,081,333)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> (20,010,349) (54,081,333)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (20,010,349) (54,081,333)
<EPS-BASIC> (4.39) (4.31)
<EPS-DILUTED> (4.39) (4.31)
</TABLE>