Okay, so I was watching X-PLAY on G4 and so I decided to look online at their website to see if it said anything about Kingdom Hearts. I search it I found out they had something about Kingdom Hearts: 358/2 Days. It had the release date. It's release date was on the website October 1, 2009!

g4tv.com/games/ds/48273/kingdom-hearts-35­82-­day­s/i­nde­x

The link if you don't believe me. The website also has videos, pictures, and news about the game.

-----UPDATED 6/20/09-----
Apparently its September 29 in U.S. and October 2 in Europe.