Bakuman, from the authors of Death Note, is probably one of the most successful manga these days, so it's no surprise to see a videogame adaptation.
Unlike most other Shonen Jump series, Bakuman isn't based onfighting: instead follows the life of two young mangaka. The game seems to be a graphic novel with manga-making minigames.
Given that Nintendo has pretty much already given up on the DS in the west, this one'll probably never leave Japan, where it launches this autumn.