Grand Theft Auto 3, recently told Digital Trends that, though it might be a "technical challenge," similarly mobile versions of GTA: Vice City and GTA: San Andreas are "very possible."
That's the kind of can-do attitude that made Rockstar the top-flight development studio it is today. Well, that and the secret deal that Dan Houser made with the devil back in 1999. Oh, right, breaking news: Dan Houser made a deal with the devil back in 1999. We forgot that wasn't common knowledge!