Polar Bear Mount is in Game (and Bind on Account!)
BlizzCon attendees cheer!
The polar bear mount "Big Blizzard Bear" is now in the game and obtainable from the standard Murloc (Blizzcon) vendor in Orgimmar and Ironforge. Follow the directions at the bottom of the list. You'll gain an achievement and the bear which is bind on account! You can mail them to your other characters so that all of your characters can share it. Pretty neat!