http://www.frd.co.uk/games.php
the offical free radical page still lists it as a 360 game and because free radical has a tradition as releasing games for all platforms, i would not expect it to become an exclusive as long as they're not mentioning something.
however, if I would be more in action games, this game would probably make me consider getting a 360 or a ps3, i expect it to be huge. free radical is the new rare (in fact it is rare), so i think it's only a matter of time until they'll release the new goldeneye, and it could very well be haze.