PS3beats360 on 13 June 2009
Grand Theft Auto 3 released in 2002 on PS2. GTA:SA and GTA:VC on PS2
GTA:IV released in 2008 on PS3 and PC/360.
Pattern here indicates: STA:SA 2 and GTA:VC 2 to be on the PS3 as exclusive games.
Grand Theft Auto 5 could be on PS3 or PS4 all depends on RockStar. Very likely GTA 5 if released would take up a whole Blu-Ray disc and be exclusive game for the PS3.
