Major Nelson sat on a panel about online gaming at PAX, and has posted up a report: part one, part two, with photos, in his blog.
Figuring heavily in all the reports of the event so far was the body odor (specifically from the PC gamers, it seems) and the presence of the girl gaming group, the Frag Dolls, who begged their way into some extra Halo and apparently 0wned at Rainbow Six 3.