EatChildren
Currently polling second in Australia's federal election (first in the Gold Coast), this feral may one day be your Bogan King.
Final specs from VGLeaks, who have bought us many wonderful leaks in the past, including the Wii U devkit leak just before Nintendo's E2 2012 conference.
For what it's worth, I can vouch that these are specs I've heard.
CPU: Espresso CPU on the Wii U has three enhanced Broadway cores
GPU: GPU7 AMD Radeon-based High Definition GPU. Unique API = GX2, which supports Shader Model 4.0 (DirectX 10.1 and OpenGL 3.3 equivalent functionality)
Memory: Mem1 = 32MB Mem2 = 1GB (that applications can use)
Storage: Internal 8 GB with support for SD Cards (SD Cards up to 2GB/ SDHC Cards up to 32GB) and External USB Connected Hard Drives
Networking: 802.11 b/g/n Wifi
Video Output: Supports 1080p, 1080i, 720p, 480p and 480i
Video Cables Supported:
Compatible cables include HDMI, Wii D-Terminal, Wii Component Video, Wii RGB, Wii S-Video Stereo AV and Wii AV.
USB: Four USB 2.0 Ports
For what it's worth, I can vouch that these are specs I've heard.