Grand Theft Auto: Chinatown Wars has now launched on PlayStation Portable (PSP) in North America and Europe, and in an effort to extend the launch celebrations Rockstar Games have today announced a number of new features for players of the game at the official online space, the Social Club. The Social Club is an online community including a space for each of Rockstar Games' recent releases, and Grand Theft Auto: Chinatown Wars has received a whole heap of new additions this week.