Speaking with the Associated Press, Shigeru Miyamoto has revealed why we haven’t been given any concrete information about the NX, he says:
“In terms of NX, there’s an idea that we’re working on,” said “Super Mario” and “Donkey Kong” creator Shigeru Miyamoto through a Japanese translator.
“That’s why we can’t share anything at this point, and I don’t want to comment on the other companies. If it was just a matter of following advancements in technology, things would be coming out a lot quicker.”
Sounds like Nintendo is working on something special with the NX that it doesn’t want the competition to know about right now.