Exhibit
      31.1


Rule
      13a-14(a) / 15a-14(a)Certification of Chief Executive
      Officer (principal
      executive
      officer)




I, Douglas B. Dyer,
      certify that:




1.            
      I have reviewed this Quarterly Report on Form 10-Q for the quarter
      ended March 31, 2007, of  Oasys Mobile, Inc.  (“Oasys
      Mobile”);




2.            
      Based on my knowledge, this report does not contain any untrue statement of
      a
      material fact or omit to state a material fact necessary to make the statements
      made, in light of the circumstances under which such statements were made,
      not
      misleading with respect to the period covered by this report;




3.            
      Based on my knowledge, the financial statements, and other financial information
      included in this report, fairly present in all material respects the financial
      condition, results of operations and cash flows of Oasys Mobile as of, and
      for, the periods presented in this report.




4.            
Oasys Mobile’s other certifying
      officers and I are responsible for establishing
      and maintaining disclosure controls and procedures (as defined in the Exchange
      Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting
      (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for Oasys Mobile
      and have:




(a)               
      Designed such disclosure controls and procedures, or caused such disclosure
      controls and procedures to be designed under our supervision, to ensure that
      material information relating to Oasys Mobile, including its consolidated
      subsidiaries, is made known to us by others within those entities, particularly
      during the period in which this report is being prepared;




(b)              
      Designed such internal control over financial reporting, or caused such internal
      control over financial reporting to be designed under our supervision, to
      provide reasonable assurance regarding the reliability of financial reporting
      and the preparation of financial statements for external purposes in accordance
      with generally accepted accounting principles.




(c)               
      Evaluated the effectiveness of Oasys Mobile's disclosure control’s and
      procedures and presented in this report our conclusions about the effectiveness
      of the disclosure controls and procedures, as of the end of the period covered
      by this report based on such evaluation; and




(d)               
      Disclosed in this report any change in Oasys Mobile's internal control over
      financial reporting that occurred during Oasys Mobile's most recent fiscal
      quarter that has materially affected, or is reasonably likely to materially
      affect, Oasys Mobile's internal control over financial reporting;
      and




5.             Oasys
      Mobile's other certifying officers and I have disclosed, based on our most
      recent evaluation of internal control over financial reporting, to Oasys
      Mobile’s auditors and the audit committee of Oasys Mobile's board of
      directors:




(a)               
      All significant deficiencies and material weaknesses in the design or operation
      of internal control over financial reporting which are reasonably likely to
      adversely affect Oasys Mobile's ability to record, process, summarize and
      report financial information; and




(b)               
      Any fraud, whether or not material, that involves management or other employees
      who have a significant role in Oasys Mobile's internal control over financial
      reporting.









Date:   May 15, 2007




/s/
      Douglas B.
      Dyer                                     
Douglas B. Dyer


Chief
      Executive Officer