Honestly, I dont understand why a lot of people feel disappointed with the WiiU being on par with ps360
those were very powerful consoles at their time of release, costing a lot of losses to their manufacturers, take ps3 for example it still offers great graphical experiences, I was playing this week Uncharted 3 and it is jaw dropping stuff, the naughty dog last of us will end up even more jaw dropping....or look at god of war3, or killzone3, whats the problem with this level of graphical fidelity ?
To achieve tangible better graphics to the normal human eye consumer, it would take far more than 2x ps360 performance.....to run for example uncharted 3 at 60fps instead of 30 or at 1080p instead of 720p, you need a hardware a lot more expansive than ps3.
I believe Nintendo engineers understood that very well. even microsoft and sony are struggling to impress developers with their hardware, higher precision effects take a lot of hardware resources without obvious better results for the avarage gamer...playing crysis for example at high settings and than at very high settings, wont change a lot in terms of visual fidelity, but necessitates a lot more hardware power....
in short, Nintendo understood that its not worth it anyway beating ps360 hardware (unless you do it by really huge margin which is very expansive), for the final consumer he wont even notice the difference on screen....