Nvidia's big announcement, teased on their Twitter page a few days ago, isn't quite what we had expected but it's still pretty cool. The PC graphics chip maker will launch their next-gen graphics product at the inaugural PAX East event in Boston on March 26-28.

In addition to a exhibit booth at the show where the new product will be demoed (and perhaps even sold) Nvidia will host a special theater event on the first day of the show and they promise that if you miss it, "you'll likely be spending the next few months kicking yourself!" Nvidia will also sponsor PAX East's BYOC and LAN rooms and will also raffle off a PC that will have dual GeForce GTX 480 graphic cards. Yep, that's the name of one of the cards that will use Nvidia's next-gen graphics chip. Finally Nvidia is sponsoring a Battlefield Bad Company 2 online tournament that will give its winner a trip to PAX East for a chance to win $10,000.