Kingdom Hearts Re:coded uses the wireless hardware on the Nintendo DS. Not for full blown multiplayer missions like the ones Square Enix created for Kingdom Hearts 358 / 2 Days, though.
Kingdom Hearts Re:coded supports passive connectivity. You can exchange data with other Kingdom Hearts Re:coded players by clamshelling your DS and walking around with Re:coded in your backpack. Remember The World Ends With You’s pin point grabbing mode? It’s sort of like that.
Other games can also communicate with Kingdom Hearts Re:coded. What does all of this wireless data do for the game? Square Enix is saving that reveal for another day.
Kingdom Hearts Re:coded comes out in Japan this fall. A release date for North America has not been announced at this time.