According to Amazon, Assassin’s Creed II will be coming out for the Nintendo DS this November. With no definite confirmation from Ubi Soft, we can’t confirm this. Gamestop doesn’t have the game listed for the Nintendo DS, only for the 360 and Playstation 3.
We will shoot Ubi Soft PR an email about this rumor and we’ll get you an answer most likely tomorrow. For now, let’s consider this to be a rumor.