There, you'll be able to buy the game early, of course, and also participate in a Super Scribblenauts costume contest, solve puzzles on a magnetic wall and meet the 5TH Cell team responsible for the game. The celebration is only going on from 11AM–2PM -- if you're late, you'll have to buy the game on its regular October 12 date, like everyone else in America.
Update: See the invitation after the break.