I've heard the saved game states are saved on Batlle.net - can I play Starcraft 2 in the morning on my Mac, then play in the afternoon on my PC at work, picking up where I left off? I can't reply to your post for some reason, Fenix - but all Starcraft 2 DVD's are a hybrid PC/MAC disc - it comes with versions for both platforms....
If you buy a PC copy of the game and a Mac copy of the game, yes, I suppose. But that's like 120USD I was wrong, didn't know it was the same disc.