Grand Theft Auto III: 10th Anniversary Edition will hit the iPhone and iPad App Store on Dec 15 for a rather low price of $4.99. Unfortunately it will only run on the iPhone 4 and 4S, the iPad 1 and 2, and the fourth generation iPod touch.
Video below. Note: Due to the content, YouTube will probably ask you to log in and verify your age before letting you watch.
Source: Rockstar Games