This excerpt taken from the ATVI 10-Q filed Nov 10, 2008.
Termination For Cause or Resignation without Good Reason. In the event your employment and this Agreement is terminated by the Employer under Section 10(b) or you terminate your employment without Good Reason, then:
(i) You shall receive payment of the Basic Severance in a lump sum thirty (30) days following the Termination Date;
(ii) In the event of a termination of your employment for Cause, all outstanding RSUs shall cease to vest and, whether or not vested, shall be cancelled immediately; and
(iii) In the event of your resignation without Good Reason, all outstanding RSUs shall cease to vest, any unvested RSUs shall be cancelled immediately, and any vested RSUs shall be paid in accordance with their terms.