Actually, it is inconceivable that here so many incompetent people in the room is given, incorrectly to judge a game and thus its overall image to distort completely. Yes, the game is designed exclusively for the 3DS. If so also clearly on the packaging. It was developed exclusively for the new hardware and would thus not - not even "stripped down" version - running on the DS / DSi / DSi XL. It's not just 3D gimmicks that show a significant evolution of the Layton series.
So then once the course of art. Successful game series will be continued on new hardware. This has always been so and will always remain so. Even with Sony and Microsoft.
I am pleased that I can support the preservation of these games series with the purchase of new hardware.