As a middleware provider and as a game developer it sure would be nice if all the different platforms were really similar for us – it would make it easier to work between them with maybe just a few differentiating features we could take advantage of. I'd hate to say that the Wii U is late; in fact, you could almost argue that it's early,
[Nintendo is] aiming for a point beyond the current generation – they're just not leapfrogging it. One can certainly envision a future a couple years down the road where we have some significantly leapfrogged generation and then the Wii U again becomes a system that's not easily portable between the other platforms. But honestly, I think the bigger challenge for us is mobile.
Mike Capps, president, Epic Games
http://www.qj.net/wii-u/news/epic-wii-u-is-either-too-late-or-too-early.html