Rockstar's two PSP Grand Theft Auto games, Liberty City Stories and Vice City Stories, may be getting a re-release over the PlayStation Store according to a newsletter sent by SCEE. The original games sold over a million copies each and told new stories in the locales of the classic PS2 games.
A digital re-release of these UMD games is quite enticing, especially as it should alleviate the games' most glaring flaws: lengthy load times. Downloading the game directly to Memory Stick will undoubtedly make these PSP games more accessible and palatable.
http://playstationlifestyle.net/2009/02/11/psp-gta-titles-to-be-made-available-on-playstation-store/
http://playstation.joystiq.com/tag/@psp/page/3/
So guys every psp fanboy musthave played GTA on it . and SCEE is too lazy to put GTA on PSN now ! lame from me