Sounds sweet, I actually have a WiiU as well as Xbox and PS3 so maybe just to be different I'll try it on there ;]
Is there any interesting added functionality for the gamepad in the WiiU version, just out of curiousity?
The gamepad acts as a Neural Hub,which allows you to interact with various objects and obstacles around the game, as well as gather information on your enemies. The gamepad can be used to hack through security while the game continues in real-time on the TV for drawing on the map, using your sniper, and throwing grenades back at your enemies. You will also be able to play using the gamepad only, free up your TV. For the Xbox 360 version, these features will be available through SmartGlass and for the PS3, the PlayStation Vita. Haven't heard if anything similar will be available for the PC version.
ack-ack