Of course they are, the hardware guys don't sit idle after systems come out.
The more interesting thing is what is it, and when will it come out? I think sooner rather than later. The mobile market is putting real pressure on Nintendo to make something innovative and cool for the kids. I think this new handheld will break from the mold of the DS/3DS and push into tablet territory with a much higher resolution screen and numerous "apps" that kids will love.








