This was just posted on gametrailers hit the link up right HERE.

The graphics in this game are completely mind-blowing, and the framerate is remarkably smooth for a pre-alpha build being played on the 360. Just go and watch it for yourself.

Edit: Embed apparently isn't, use the link at the bottom of the page.
Clocking in at 13 minutes of pure solid snake goodness, the trailer seems to be 'directors cut' of the original one shown at E3. More Solid Snake, more camouflage action, more jokes...and more Raiden? This trailer is simply amazing so head
here
to check it our for yourself.