http://www.tomsguide.com/us/nintendo-wii-u-wii-xbox-360-ps3,news-13401.html
>PowerPC-based 3 GHz processor with four cores
>the console may get 768 MB of DRAM that is embedded with the CPU, but shared between the CPU and GPU.
>AMD gpu
Also it's been rumoured to be $600 USD at release. I've always been an Xbox guy though I've been thinking of going WiiU, but if it costs that much I'm not going to bother.
>Ninja Gaiden 3 as a launch title
>Another Assassins Creed
Here's a newer image of it: http://wiiuinsiders.com/wp-content/uploads/2011/12/wii-u-hardware-specs-leaked.jpg
Also it seems it might be able to support more than just one of its tablet controllers. Which means a lot of strain on the system as it would have to be rendering video for 3 different displays.
I like the form factor.