My reaction when seeing the screens and description: Most likely fake, and if even real I'm not sure if it would work well. For one thing, the controllers alone would make some deep cuts into your wallet (further, I'm not even sure if they would serve a practical purpose). If this console actually existed, it would most definitely cost more than the PS3 did at launch. Further, it actually seems like a system that would by its design mean there would be less potential for games on it. Why? Because this is Nintendo we're talking about here. Sure the system can try (if it existed) to say that its graphics will be better than either the 360's or the PS3's, and it probably can, but only the first-party Nintendo titles would really benefit from that. With every other title they would actually have to contend with the system more and it would be harder to make a game for this system than the Wii, meaning the third-party titles are going to be noticeably absent because of the high barrier point.
My reaction when we end up seeing what the actual product is: Meh. Nintendo home consoles haven't really interested me before, it probably wont interest me now, its only really their handhelds that keep me interested (even then, I think the 3DS may lose interest from both consumers and designers next year if Nintendo doesn't step their game up)