It's just crazy to think that MGS4 will ever be ported at this point. Kojima has said it won't be, it simply doesn't fit on a DVD, or two, or three, it has tons of Apple product placement (Mac Towers, Macbooks, the iPod inventory item) that I can't see happening in a game for a Microsoft console, etc.
PS3 is seriously the best console this generation, and I think more people are going to start recognizing that now that it's in most peoples' price range.