Series director says hardware similarities between the handheld and console make a straight port of the racer the logical move.
PSP has announced that Gran Turismo 4 Mobile will be a port of Playstation 2 Gran Turismo 4. This statement was said by series producer Kazunori Jamauchi in an interview featured on Son'y official Japanese web site. He plans to keep the same amount of content on the PSP version, but Polyphony Digital are determining what needs to be done to the PS2 version to make it playable on the handheld.
Gran Turismo 4 Mobile for the PSP will essentially be a port of the PlayStation 2 Gran Turismo 4, said series producer Kazunori Yamauchi in an interview featured on Sony's official Japanese PlayStation Web site. In the interview, Yamauchi states that he plans to keep the same amount of content on the PSP version, but the developers at Polyphony Digital are determining what needs to be done to the PS2 version to make it playable on the handheld...
News source: GameSpot