Now that Final Fantasy XIII is no longer exclusive, Sony’s covering itself as far as its other major exclusive goes.

SCEA CEO Jack Tretton said at E3, “Metal Gear Solid is not only exclusive on PS3 – it’s only possible on PS3, thanks in part to Blu-Ray.“

Granted, Konami could easily dumb down MGS4 to fit on Xbox 360 (or just simply release it on 10 DVD’s), but it does not appear they see any great urgency to do so considering how well the game is selling on PS3.