It seems it still doesn't work for me on mac, but the problem is different now. OIn fact I am now having the same problem that stopped the windows version from working - The mouse cursor remained on screen, even after trying every possible way to full-screen the game. Then, after the opening sequence, the game is frozen and I can't move. There's a tiny grey object in the centre of the screen.
The intro looked amazing though, I can't wait to play! (well I can wait, take your time )