It's all about the games with Nintendo, and Wii U is certain to get them now. I think attempting greater realism on the upcoming other two consoles will be a costly endeavour at the developer end, significantly increasing the risk factor in a delicate period for the industry. Added to the fact some will not be willing to put down a large sum on a new display, or be happy about paying more for games. If and when Nintendo see fit, they can run the CPU clock higher, it's currently running conservatively. In addition to this developers will naturally find ways of harnessing the best from Wii U's unique qualities.