
<TABLE> <S> <C>

<ARTICLE> 5
<RESTATED> 
       
<S>                             <C>                     <C>                    
<PERIOD-TYPE>                   YEAR                   YEAR                   
<FISCAL-YEAR-END>                       DEC-31-1995             DEC-31-1996
<PERIOD-START>                          JAN-01-1995             JAN-01-1996
<PERIOD-END>                            DEC-31-1995             DEC-31-1996
<CASH>                                      664,219                 968,297
<SECURITIES>                              2,135,478              15,102,380
<RECEIVABLES>                                92,168                       0
<ALLOWANCES>                                      0                       0
<INVENTORY>                                  36,114                  35,796
<CURRENT-ASSETS>                          3,034,856              16,264,394
<PP&E>                                    1,868,192              11,627,348
<DEPRECIATION>                              552,782                 947,809
<TOTAL-ASSETS>                            4,748,347              27,146,116
<CURRENT-LIABILITIES>                       501,945               3,861,038
<BONDS>                                     351,485                 214,177
<PREFERRED-MANDATORY>                    13,433,482                       0
<PREFERRED>                                       0                       0
<COMMON>                                      1,146                   9,448
<OTHER-SE>                              (9,539,711)              23,061,453
<TOTAL-LIABILITY-AND-EQUITY>              4,748,347              27,146,116
<SALES>                                      39,006                  35,580
<TOTAL-REVENUES>                            105,673                 475,904
<CGS>                                             0                       0
<TOTAL-COSTS>                                49,647                 171,486
<OTHER-EXPENSES>                          3,451,923               5,209,077
<LOSS-PROVISION>                                  0                       0
<INTEREST-EXPENSE>                           72,633                  54,277
<INCOME-PRETAX>                         (3,341,984)             (4,160,090)
<INCOME-TAX>                                      0                       0
<INCOME-CONTINUING>                     (3,341,984)             (4,160,090)
<DISCONTINUED>                                    0                       0
<EXTRAORDINARY>                                   0                       0
<CHANGES>                                         0                       0
<NET-INCOME>                            (3,341,984)             (4,160,090)
<EPS-PRIMARY>                                (3.07)                  (0.64)
<EPS-DILUTED>                                (3.07)                  (0.64)
        

</TABLE>
