I read, on Kotaku I think, that Jamie tried to make a joke but Slash just outright trashed him lol, oh and that when Tony Hawk came on stage he was pissed off and I think I know why, Jamie screwed the NeverSoft presentation.
They should get the Jam Session host, he was freakin' awesome, unless of course he is one of the developers for Ubisoft, in that case Kudos to Ubi.