
<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
STATEMENTS OF OPERATIONS AND CONSOLIDATED BALANCE SHEETS AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                                      <C>
<PERIOD-TYPE>                                   12-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               JUL-01-1998
<CASH>                                      14,595,034
<SECURITIES>                                38,514,459
<RECEIVABLES>                                  654,380
<ALLOWANCES>                                    66,000
<INVENTORY>                                          0
<CURRENT-ASSETS>                            31,717,249
<PP&E>                                      18,337,962
<DEPRECIATION>                               5,902,926
<TOTAL-ASSETS>                              67,391,972
<CURRENT-LIABILITIES>                        9,910,959
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        93,375
<OTHER-SE>                                  57,387,638
<TOTAL-LIABILITY-AND-EQUITY>                67,391,972
<SALES>                                      2,210,983
<TOTAL-REVENUES>                            23,210,581
<CGS>                                        1,391,368
<TOTAL-COSTS>                               36,200,731
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              32,681
<INCOME-PRETAX>                            (9,797,035)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                        (9,797,035)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                               (9,797,035)
<EPS-PRIMARY>                                   (1.05)
<EPS-DILUTED>                                   (1.05)
        

</TABLE>
