I'll just lay down these two, for now. And what else are you expecting there? Any PC games to be announced?
http://www.gametrailers.com/video/pax-10-red-orchestra/703872
http://www.telltalegames.com/community/blogs/id-657

I hope to see more information about TellTale`s "Back to the Future" game. It looks good so far...
http://content.usatoday.com/communities/gamehunters/post/2010/08/telltale-games-times-back-to-the-future-project/1?csp=34

Yes they will be present there, will probably announce a new project/game and will bring a DeLorean car for exhibition.
I just don't know how the hell they'll make a dinosaurs-themed game, how to make it playable and maintaining the fun in it.

TellTale showed that they are quite flexible and can adapt to source material. Their latest Puzzle Agent "pilot episode" was quite creepy at times, so I have confidence in them.
Personally, I have never understood the hype around dinosaurs in `90, so I`ll probably pass Jurassic Park.

Me too.

Time to pack for PAX!! (You see what I did thar?)

I want a surprise!

Duke Nukem Forever is rumored to show up.

That Telltale's surprise game is called:
Poker Night at the Inventory
Yes.
I sawz. Are you going there tomorrow? Will you go catch the DNF/2K Games conference or not? ;)

Hitting the sack and driving up in 4 more hours.

Where are you man?! go make part of gaming history, try it, even if the press is there maybe you can get inside: http://www.gog.com/en/forum/general/duke_nukem_forever_by_gearbox_confirmed
:p

Bump. Late update to this topic but here is it anyway, the games announced/presented at PAX:
-Duke Nukem Forever (Hail to the king, baby! I knew it, I knew this would come out sooner or later!)
-Poker Night at the Inventory
-Swarm ( http://www.youtube.com/watch?v=4Hg0bVLdRgA and http://www.youtube.com/watch?v=ywj9FFGSKN0 )
-Aliens: Colonial Marines
-Bloody Good Time (by The Ship dev)
-Outland
-The Witness (by Braid dev)
-Retro City Rampage (Wii)
-Fluidity (Wii)
-Firefall (MMO using Project Offset's engine. Too bad that P.O. is dead, and this is an MMO...)
and others. Now there's TGS 2010 coming up, September 16-19. And here is a GOGer report on PAX, in case you missed it: http://www.gog.com/en/forum/general/my_experience_at_pax

Why didn't we meet up!? I was there and stuff!

Played so many board games and D&D, wish PAX was every weekend.