News flash to George Lucas, prologues release prior to originals. If you live in Lucas' back asswards world, don't expect Gran Turismo 5: Prologue to be anything more than a teaser to the game's late 2009 release. You get to taste the game on both Blu-Ray disc and the PlayStation Network, depending on how you feel. Yes, it is downloadable on the PlayStation Network. It's hard to imagine a game as highly anticipated as GT5 available on anything but Blu-Ray disc, but as long as Cinema Blend doesn't see it on iTunes next week, they're good.