Square Enix and Rockstar Games just brought two massive PS2 games to iOS. You can get Grand Theft Auto: San Andreas and if you have a Japanese account Dragon Quest VIII: Journey of the Cursed King.
Dragon Quest VIII has been redesigned with a portrait layout and auto running. Grand Theft Auto: San Andreas got upgrades too like enhanced graphics and custom music playlist support. There is a pretty big difference in price, though. Dragon Quest VIII is 2,800 yen ($27) while Grand Theft Auto: San Andreas is just $6.99 on iTunes.
Dragon Quest VIII is also on Android and GTA: San Andreas will have Android version next week.