To me the release of the Wii U seems a lot like the second coming of the "Dreamcast", and all the mistakes that involved. The same exact business move that pretty much knocked Nintendo's big competitor... SEGA... out of the hardware aspect of things. A rivalry still remembered in all of the Sonic Vs. Mario stuff which endures despite having lost all real relevency.
Basically we've got the least powerful console coming out first hoping to pre-emptively get an install base before the other big consoles come out. It promises all of these innovative things and gimmicks, but it's doubtful if they will work, or even be as great as they sound if they do work. I look at the Dreamcast's own controller/memory card set up which put a display on your memory unit and could even involved mini-games and such attached to the data cards, and I can't help but think that what Nintendo is doing is simply a new, much more advanced, version of doing that. Not to mention how the Dreamcast as supposed to have internet playable games, things like Armada, which were going to present a persistant world enviroment, that just never really panned out, even as far as development goes.
At any rate, I could be wrong, but I suspect this is going to end much the same way. The Wii U will be the big boy on the block for a little while, and then after it's 5 minutes it's going to get it's block knocked off by the rival consoles.
As far as the "entire entertainment experience" thing, I have to agree that it's a pretty bad idea, in the end I don't think these consoles are going to become the household products for non-gamers that the makers want. In the end it's still going to come down to the games, and the core gaming audience, and really it comes down to what titles you have and how powerful the system is. In the final equasion the other consoles are probably going to produce more and better games with their higher capabilities, which means more gamers will gravitate towards them, and admittedly will probably ignore the rest of the stuff being tacked onto it, as will everyone else.