Never mind that Portal 2 is great a game
but… as an added bonus PS3 owner get a Window or Mac version of the game for free (what PS3 owner are getting preferential treatment for once?)
BUT even cooler is that one can play the co-op part of the game with one player using the PS3 and the other playing on a PC and Mac.
HOW COOL IS THAT!!
For years I have been dreaming and wishing for games that would allow for co-op and multiplayer over different platforms/console
and this is definitely a step in the right direction! Thank you Valve!!
here is a demo video: