According to a report by TwistedJunk, Grand Theft Auto IV: Stories might be heading for the PlayStation Vita. The site cited a source that has close ties with some of the folks over at Rockstar Games.
According to the source, the game will take place in Liberty City but with a whole new story, characters and might feature possible downloadable content.
The source also mentioned that the game has been in development for some time. Remember folks, all these are just rumours as Rockstar has yet to make an official announcement.