According to this week's Famitsu release list (via AndriaSang), Bomberman's bringing his adorable brand of arson to the DSi's download service in October.
Or at least, that's the date for Japan, anyway. Hudson hasn't actually announced the game yet, though, so the what's, when's, and why's of the West are still up in the air.
We've contacted Hudson for more info. Here's hoping the publisher gets back to us soon, maybe with some news on the long-awaited Bomberman: Act Zero sequel.