Dear all,
first i wanna present myself 'cause this is the first time i directly post over B3D forum. I'm an oldie italian player (try to guess what 78 means in my tag), i'm a programmer and an ex-rally pilot's son. I own all consoles systems up to date (starting from Zx Sinclair Spectrum 48k), handhelds included, so i can imagine myself as quite competent on this argument.
I just wanna to point you that Nintendo is having a huge profit due to the gba - ds - wii combo. I remember when the Ds came out, Nintendo specifically pointed out that the new hardware were not intended to take the place of the ultraseller-gba but that was a parallel project. Now i can assume that if it worked for the handelds, no-one can stop 'em to do it even in the home console field.
Whenever they decide it's the right moment, they can push out from their cylinders a more-likely-hardcore project without changing their "touch-move generation".
All this to remember you that they can (and i underline CAN, that is NOT must or should words ) throw out something much more tech-graphics-whore without even crossing the wii road.