User blog comment:2ks4/Friday May 5 Social Club event change/@comment-194.72.50.162-20110523082701/@comment-3455248-20110523161618

This Thursday May 26, 16:00 - 19:00 Eastern should be Triple XP for both platforms. The Social Club part is only for PS3, but generally both platforms get Triple XP. They may schedule a surprise session before then, but that's the only one that's known so far. Check out the calendar post linked above for more details.