IF the game is Multiplatform, then the news isn't big at all. In the sense that the hardware push will be negligible, since every MGS diehard under the sun already has a PS3. Which would also lead to the PS3 version outselling the 360 version. Sony wouldn't so much lose as Microsoft would gain, as 360 owners who would like to try a MGS game but wouldn't buy a PS3 to play it would make up the core of the 360 sales.
If the game is 360-only, then there are going to a bunch of MGS fans forking out the dough for a new system. The Mattrick comment would make this scenario more likely, the one about "all games shown from now on..." Although this would be kind of a slap in the face to the MGS core fanbase who invested in a PS3 for MGS4, only to make them buy a 360 to play the new game.







