When is Gran Turismo 5 coming out?????????

Can anybody tell me when Gran Turismo 5 is coming out and also can some explain why gmespot has 3 Gran Trusimo 5 games when you search this game?

Thanks

Well there is Gran Turismo 5: Prologue which is supposed to be a download on the Playstation Network sometime this fall or holiday season...

The fullyfinished gameof Gran Turismo 5 isn't suppose to come until Late 08' I believe, at least I think that's what was said at E3...

I don't want to call Prologue a Demo but it's probably the best way to be described...

It's a sample of the game but not the finished product but it's not like it will only be 1 course and a1 car supposed...