LOTS of UI changes in this patch, too. Stuff for mail, the AH and a few other tweaks that sound pretty neat. But, (lol...you knew there was gonna be a "but") I'm betting that 2.3 will break the shit out of a whole bunch of useful addons out there. CT_core/CT_mailmod, AuctionFilterPlus, bag mods and Mr. Plow at least.

What I'm REALLY looking forward to is the doubling of in-FSR mana regen for casters. That should make a very nice difference.