I heard him speak at a media arts festival here in Vienna a few months ago.

I'm pretty sure he won't be trolling TED or throwing around in-joke references: He actually seemed pretty sick of all the mindless repetition of memes (and how could he not be?).

He's a smart and thoughtful guy, was very humble, self-deprecating and sarcastic, and had a bunch of interesting anecdotes to tell -- although it did appear that he fairly randomly stumbled into the situation and doesn't have many deep, original insights on online communities/social software/the meaning of life, the universe and everything.

Then again, I believe he same may be said of Jimmy Wales, for example...