
<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           8,437
<SECURITIES>                                         0
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                36,973
<PP&E>                                       4,606,605
<DEPRECIATION>                               (865,476)
<TOTAL-ASSETS>                               3,778,102
<CURRENT-LIABILITIES>                       48,345,434
<BONDS>                                              0
<PREFERRED-MANDATORY>                       24,473,001
<PREFERRED>                                          0
<COMMON>                                     5,180,652
<OTHER-SE>                                (74,220,985)
<TOTAL-LIABILITY-AND-EQUITY>                 3,778,102
<SALES>                                              0
<TOTAL-REVENUES>                                     0
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                            15,745,708
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                           3,245,515
<INCOME-PRETAX>                           (18,991,223)
<INCOME-TAX>                                       800
<INCOME-CONTINUING>                       (18,992,023)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                              (18,992,023)
<EPS-PRIMARY>                                   ($.21)
<EPS-DILUTED>                                   ($.21)
        

</TABLE>
