If your playing on a new 3ds then yes all new 3ds titles "so far" work with a gateway card as long as your emunand is a high enough firmware for the game you want to play.
Pretty sure the only n3DS game so far is Xenoblade Chronicles, Devil Survivor 2 is an o3DS game but either way, they all work on n3DS and everything except Xenoblade works on o3DS.