Quote Originally Posted by Cairdeas View Post
Actually this is only part of the issue, the other part is that Microsoft doesn't want any game on the 360 able to interact with any players from the PS3 version of that multiplatform game. this is why Portal 2 only works on PS3 and PC for cross platform and the 360 players are stuck playing by themselves.
I bet this is due to

Xbox user: Dam i lagging bad
PS3 user: Wow really? am not lagging out all
Xbox user: what system you guys in?
PS3 User: PS3 you?
Xbox user: Xbox fuck this getting a PS3 today i can't take this lag anymore and getting d/c "Fail!"

This is only a example on why M$ does not allow ps3 and xbox to play together.