I watched them in LA during E3. It was lots of fun, and yes they do change their song line-up per location. In LA, they premiered some Diablo III music and had the crazy Japanese guy playing Mario music on YouTube!
Quoted from facebook, so don't shoot the messenger.
Funny/sad quote of the day: "They say celebs die in threes. Leave it to Billy Mays to throw in one extra, COMPLETELY FREE!"
It's funny on the gametrailers comments section how people are defending the cinematic by noting that you don't do any of the stuff in the WoW cinematics either.
Altair had gloves in Assassin's Creed. How the hell does Indiana Jones-lite get to go all monkey climbing in that clip. Other than that, it looks real nice. It's good to see PS3 power being used well by developers and artists.