Quote Originally Posted by Raist View Post
Don't think you can install the same license on two machines... seem to recall they get locked to the unit once registered. Or maybe it was your PSN account. Forget the details.
It's the latter. Your game registration code gets linked to your PSN account, and each PSN account can only have one code registered to it.

Quote Originally Posted by brendan93 View Post
woah are you serious?! thats awesome! ill try it out now! thanks heaps guys
Just to be clear, you won't be able to play on both PS3 simultaneously. You would need a second copy of the game and second PSN account for that. I don't think that's what you're asking, but I realized your first post was ambiguos enough that I thought I'd clarify.