I can't get CoolBook to work at all in Mountain Lion, everything I've tried prevents my MBP from even booting. So far I've tried the workaround suggested in this thread but the computer won't boot with it. Replacing the AppleACPIPlatform.kext with the one from Snow Leopard results in the same problem. Anyone with Mountain Lion tried anything that has gotten Coolbook to work? Edit: I think I got it to work, see my post below.