<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS, STATEMENTS OF OPERATIONS, STOCKHOLDERS' EQUITY AND
CASH FLOWS INCLUDED IN THE COMPANY'S FORM 10-K FOR THE YEAR ENDED DECEMBER 31,
1998, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
AND NOTES THERETO.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                          36,261
<SECURITIES>                                    55,898
<RECEIVABLES>                                    2,140
<ALLOWANCES>                                         0
<INVENTORY>                                        435
<CURRENT-ASSETS>                                67,348
<PP&E>                                          49,689
<DEPRECIATION>                                (28,179)
<TOTAL-ASSETS>                                 107,262
<CURRENT-LIABILITIES>                           29,546
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        30,234
<OTHER-SE>                                      60,512
<TOTAL-LIABILITY-AND-EQUITY>                   107,262
<SALES>                                          8,512
<TOTAL-REVENUES>                                38,910
<CGS>                                            2,058
<TOTAL-COSTS>                                   62,176
<OTHER-EXPENSES>                                14,460
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               2,403
<INCOME-PRETAX>                              (156,124)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                          (156,124)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 (156,124)
<EPS-PRIMARY>                                   (5.25)
<EPS-DILUTED>                                   (5.25)