But really, congratulations! I'm interested to see just what this thing is, and while I imagine you're under some kind of NDA (or not!) at least impressions about the feasibility of the thing will be in the wild.
I'd stop making non-handheld hardware. It takes platform holders until nearly the release of the successive generation to start making a profit, and Nintendo lives by its ability to recycle and remix its classic titles. Take it all the way and be rid of the drain that is the TV game system.