Ok here it is the full 15 minute gameplay video at good quality:
http://www.gamevideos.com/video/id/13378
Edit: The pinnacle of MGS confirmed. It's like they took Metal Gear Solid's best things and perfected them while improving the combat immensely and the visuals are just gorgeous. Alot better than the E3 trailer let on.
Thanks to Blacksaber for the sig!