Blizzard's unlocked a new mount for people to try out in the Wrath of the Lich King beta, and it's an awesome-looking motorcycle called "The Hog."
According to the current information that's been made available for the new mount, it's a level 80 mount that can only be used in Outland or Northrend. Furthermore, the mount isn't restricted to engineer professions, which means that, as of this writing, anyone who's level 80 can pick up this sweet ride to make their way across Outland and Azeroth.
The only sad thing about it? There isn't a lower-leveled equivalent so that you can drive around Outland in style. Ah well, it's a small regret at least.