The SCD patent itself mentions it could work with numerous form factors by the way. It mentions everything from a static home console to "semi-mobile" consoles to portable consoles.
I've always said there could be 4 or even 5 different variants of the NX, rather than just 2, and Iwata directly said that also.
A "semi-mobile" portable console (maybe like a mini-gaming laptop) could come in 2017 for example, with a pocket handheld in 2018, etc. etc.
I think Nintendo should use Polaris ... the architecture is remarkably power efficient
https://www.youtube.com/watch?v=45muNhrrAUg
Looks like you could get 40 watts for the GPU alone + say 5-6 watts for the CPU ... that's not too much more power draw than the Wii U, and that can run a game like Star Wars Battlefront at 1080p/60 frames per second.
Who knows with their own customizations, Nintendo could very well push that power draw down even further.
