MMOC did mention heirloom items, so I'm not sure if it will include all account-bound items like the archaeology items. I couldn't imagine why it wouldn't include those though.
I'm actually hoping it will finally let me mail my Big Blizzard Bear from my first account to my second account (within the same Battle.NET account).
I usually forget how they changed mana regen in Cataclysm, but I was reminded last night when I was setting up some of my Shaman's Resto set. Regen is controlled by being in combat or not. While in combat, you effectively have 0% of your regen provided by spirit. The healer talent specializations provide bonuses to allow you to gain a percentage of your OOCombat regen while in combat. Some classes also gain mana back from other things.
Essentially, the regen aspect is pretty much useless as DPS, but it is helpful if you want to dual-spec as a DPS and a healer since chances are your gear will not change much if at all.
Heh, I'll be one less DPS in the queue then

. But I also don't do them on my tank anymore either :\.