Portal 2 Confirmed for Mac

If Matt had to change his pants over the Valve Apple teasers the other day, what will today's wardrobe malfunction be? I only ask because the latest GameInformer confirms Portal 2 is coming to Mac. Update: Steam's officially coming to Mac in April, with free cross-platform syncing!

Scheduled for a fall release, Portal 2 will be a full-fledged Portal experience distributed to the Mac, presumably, by an all-but-confirmed Steam service for that platform. [MacRumors]