4.0.1 is out today, and so is WoW Talents 2.1. I was finally able to discard the old WotLK talents, reducing the app footprint quite significantly. Talents are updated to wowhead's latest, though I there could still be issues to iron out in the next few days. Enjoy, rate, and comment! Have fun with patch 4.0.1 and the new talents!
Oh, I should also mention, loading a spec from the armory is currently disabled, since it hasn't been possible to test with Cataclysm talents yet. It will return soon.