Mr. Sane, I respectfully disagree.
If 3rd parties aren't willing to learn and adapt to an inventive, new way of thinking, and can't deliver compelling content unless it's me-too ports across the board, frankly I don't care that much about their games. (Granted, I now own a 360, so I can get the goods there if I feel so inclined.)
My point: Since getting a 360, I've bought a whole bunch of HD games I'd missed out on (Fallout 3, Orange Box, Enslaved, Bioshock) and to date I've played one. For some reason I just can't get my motivation up to slog through these cut-scene heavy, story-driven games. But the prospect of strange innovative experiences through Wii U, even if they're bite-sized or "casual" or family-friendly, gets my juices flowing more than a shinier, bigger, "badder" game. But I guess that's just my taste.
My point #2: I'd rather have another Wii-like system that changes the paradigm, even if AAA devs ignore it, than a me-too Super Wii that's the same but with more horsepower so as to allow cross-platform ports.