As Pokémon Sunday announced a little earlier, the japanese release date for the upcoming games is September 18th, 2010. With the actual release of the games being less than three months away, more and more new Pokémon and information are expected to be revealed soon, so keep checking!
Update: Check the new footage revealed, over at our friends in Filb.de!
Update: Pokebeach now has the demo footage we saw from Dogasu the other day.