Oh yeah, and we finally announced 4e.
(The Catalyst stuff is super awesome - full color interior printing, 24 different plastic 'mechs in the box, very cool. The scenario pack is also 100% awesome. The only drawback to the boxed set is the maps. They're printing on poster quality paper, and mine were folded poorly. Still, not a big deal. The miniatures and book quality more than make up for it.)
Rather than ramble on about the con, I'll point to my convention blog and a video interview I did, along with the latest podcast episode in which Dave and I talk a bit about 4e:
Video Interview - http://www.youtube.com/watch?v=oRzcVi_ymzA
Podcast - http://www.wizards.com/default.asp?x=dnd/arch/pod
GenCon Blog - http://forums.gleemax.com/showthread.php?t=906391
Never say that I don't give you enough stuff to keep you busy at work.