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Grand Theft Auto 4 is a computer game announced to be released by Rockstar Games at October 16, 2007 for PlayStation 3 and Xbox 360. During the 2006 Microsoft E3 press conference, it was announced that Grand Theft Auto 4 would be available for the Xbox 360 and will have exclusive episodic content. After the press conference, Rockstar Game's parent company, Take-Two Interactive posted a press release announcing Grand Theft Auto 4 will be released simultaneously for the PlayStation 3 and Xbox 360 platforms.
Sam Houser stated that San Andreas was to mark the end of the GTA III trilogy, which suggests that the next release will be called GTA4. Since San Andreas, two PSPGTA games have been announced. The first PSP game, Liberty City Stories, has been released. The next installment, yet to be named, is believed by gamers to be taking place in Carcer City, the same city in which Manhunt was set. It is not yet known whether the second PSP title will be the last in the GTA III era or part of the GTA IV era. Due to the second PSP title being an "all new" title (as quoted in a press statement by Take-Two Interactive), it is possible it could be part of the GTA IV era.
Sam Houser was quoted praising the new Playstation 3 on May 17, 2005 when the console was unveiled.
Several European magazine articles have originally claimed that the next GTA would take place in London, Manchester or Mexico City.
9th May 2006 - GTA 4 announced for Xbox 360 and Playstation 3. Due for launch in October 2007.