<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S FINANCIAL STATEMENTS AS OF DECEMBER 31, 1998 AND 1999 AND MARCH 31,
2000 AND FOR THE YEARS ENDED DECEMBER 31, 1997, 1998 AND 1999 AND THE THREE
MONTHS ENDED MARCH 31, 1999 AND 2000 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C> <C>
<PERIOD-TYPE> YEAR 3-MOS
<FISCAL-YEAR-END> DEC-31-1999 DEC-31-1999
<PERIOD-START> JAN-01-1999 JAN-01-1999
<PERIOD-END> DEC-31-1999 MAR-31-1999
<CASH> 34,242,471 0
<SECURITIES> 13,674,979 0
<RECEIVABLES> 598,800 0
<ALLOWANCES> 0 0
<INVENTORY> 3,632,518 0
<CURRENT-ASSETS> 52,418,519 0
<PP&E> 13,811,286 0
<DEPRECIATION> 4,726,776 0
<TOTAL-ASSETS> 61,839,029 0
<CURRENT-LIABILITIES> 11,555,274 0
<BONDS> 6,390,264 0
123,441,055 0
0 0
<COMMON> 606 0
<OTHER-SE> (79,746,170) 0
<TOTAL-LIABILITY-AND-EQUITY> 61,839,029 0
<SALES> 0 0
<TOTAL-REVENUES> 0 0
<CGS> 0 0
<TOTAL-COSTS> 48,633,884 10,100,158
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 688,795 166,952
<INCOME-PRETAX> (47,789,928) (10,035,176)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> (47,789,928) (10,035,176)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (47,789,928) (10,035,176)
<EPS-BASIC> (13.99) (3.61)
<EPS-DILUTED> (13.99) (3.61)
</TABLE>