All the people telling me that BC, Wrath, and Cata had bad launches in yesterday's comments: they didn't for me! I played to my heart's content at midnight. Guess you were just unlucky.
Will I be able to send my heirlooms to the Pandaren starting zone on Tuesday, or will I have to wait until I choose Alliance?
No, you can't send heirlooms (or anything at all) to Pandaren who haven't yet left the Wandering Isle.
Stupid question: when did they take out the keyring and why? Aren't there still keys in the game?
The 32-slot keyring was essentially another bag -- an inventory for the database to keep track of -- and Blizzard opted to use that space for Void Storage instead, since there's a limited amount of database space allotted to each character and his stuff.
CRZ keeps kicking my son out of my 2 seater mount every time we move to a new zone.. Is this getting fixed cause it really sucks!
That's a bug! They're working on it.
How do the Challenge Mode reward sets work? Are they account-wide, or do we need to earn them on every character for which we want to have them?
They're character-specific. Get Silver on your rogue, get part of your rogue set.
Will we be able to queue for MoP dungeons as soon as the expansion goes live?
Provided you have the right gear level for them, yes. The first dungeon (Temple of the Jade Serpent) has a required item level of 358.
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