- it is account-wide!
- I'm not sure if it's randomly sorted, or sorted by artwork (so like items of different colours are grouped together). The example UI given showed two like items next to each other, but there were too few items in total to be sure this wasn't chance.
- as soon as you have an item bound to you it will be added to your wardrobe and you can toss the item if you like (at least as far as appearance goes!). You must be able to equip the item in order to learn the appearance, so no learning wands on your warrior
- they will automatically add all quest items you may have earned through any quest in your character's history, plus any options you didn't choose at the time!
- you can create and save outfit sets to manage all this better
- hiding / showing head, cloak and shoulders will be on a per-outfit basis. Shoulders can be hidden!
- new transmog slots: shirts, weapon enchants and tabards! Finally we can collect tabard looks and get rid of the banked ones! I'm not sure how tabards with powers / utilities will be handled.