<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<RESTATED>
<S> <C> <C>
<PERIOD-TYPE> 3-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-1999 DEC-31-1999
<PERIOD-START> APR-01-1999 JAN-01-1999
<PERIOD-END> JUN-30-1999 JUN-30-1999
<CASH> 10,032,870 10,032,870
<SECURITIES> 0 0
<RECEIVABLES> 151,975 151,975
<ALLOWANCES> 0 0
<INVENTORY> 5,747 5,747
<CURRENT-ASSETS> 10,278,136 10,278,136
<PP&E> 1,246,649 1,246,649
<DEPRECIATION> (516,742) (516,742)
<TOTAL-ASSETS> 11,079,021 11,079,021
<CURRENT-LIABILITIES> 1,539,232 1,539,232
<BONDS> 0 0
0 0
0 0
<COMMON> 8,267 8,267
<OTHER-SE> 9,531,522 9,531,522
<TOTAL-LIABILITY-AND-EQUITY> 11,079,021 11,079,021
<SALES> 98,601 164,331
<TOTAL-REVENUES> 499,282 818,351
<CGS> 37,570 106,110
<TOTAL-COSTS> 37,570 106,110
<OTHER-EXPENSES> 3,047,966 6,566,203
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 0 0
<INCOME-PRETAX> (2,586,254) (5,853,962)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> (2,586,254) (5,853,962)
<DISCONTINUED> (78,982) (87,201)
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (2,665,236) (5,941,163)
<EPS-BASIC> (.35) (.78)
<EPS-DILUTED> (.35) (.78)
</TABLE>