I agree with Martin on most scores here. In my opinion, the simplest way of looking at things is often the most telling, and I can't get my head around why Nintendo would be so secretive about what's inside the Wii U unless there's reason for their gamers to be concerned. Whether or not they felt they've balanced it out smartly, efficiently or on the cheap - the radio silence to me denotes a worry. If they really felt it was up to scratch and beyond in terms of specs, surely they would have been out-spoken about it, but clearly, they don't want discussions like this thread, which reflects badly for the outlook for the system.
Even a few developers making statements like this is concerning: if it was clearly above the level of our current 6/7 year old 360s and PS3s, surely these things wouldn't come up at all? Why would a developer lie, because they don't like Nintendo? Surely not, that's a waste of time, they just wouldn't develop games for the system - they don't need to explain anything in those circumstances. This denotes that opinions of the specs for the Wii U are by no means unanimous - which they really should be, if there's no reason to worry.
Bracing myself for another generation of Nintendo being in their own boat. Like Martin says, although the prospect of HD Mario, Zelda and Metroid is mouth-watering - we should have had it years and years ago. Despite all these fantastic series, in my opinion, Nintendo's wavering stance on their hardware has de-prioritized those brilliant game series, which ultimately are what carry the company. This is probably the last time Nintendo can milk their casual audience, and it surely won't be on the scale it was with the Wii.
Unfortunately I think Nintendo have made a massive blunder by not ensuring some (future) security with their specs: again, looking at things in simplistic terms, how many avid gamers who grew up on Goldeneye, Mario, Banjo (real games, basically) who continued to game have stuck exclusively to Nintendo? I can't imagine it's as many as they'd like. And the fact is, they could have kept all of those people if they continued their policy of being up-to-date with their competitors. The Wii U looked to correct that trajectory that avid gamers may have perceived through the Wii - instead, all this talk makes it seem like they're trying to dupe us into buying what isn't spec-wise a next generation console.
I'd love to stand up for Nintendo like many C3ers here, but if they have nothing to hide, show and fully explain the contents of your box. I can't think of any logical reason why it's kept under wrap, and furthermore it just adds to the impression that Nintendo don't want to help other developers get the most juice out their system. They may be happy with their new console's infrastructure, but clearly not everyone is.
Edit: On the subject:
http://www.eurogamer.net/articles/digitalfoundry-mass-effect-3-wii-u-face-off
( Edited 21.11.2012 22:23 by The Strat Man )