WoW Cataclysm: Anybody seen Deathwing?

So, Cataclysm dropped and the rush to hit 85 ensued. Heroics were "hard" and people cried, and then they were nerfed. The grind for gear continues.

The great foe, Deathwing randomly killed people, giving them the achievement Stood in the Fire. Have you gotten this achievement on any of your toons?

My mage alt was killed early on while inside the neutral auction house in Tanaris. I didn't even know what happened at first , and then the achievement popped up. That's the one and only encounter I've had and haven't seen Deathwing since. Many others are asking where he's been?

Have you seen Deathwing?