Nintendo's Power most recent issue highlights some of the features we should expect on the Wii U version of Assassin's Creed III, beyond being a little surprised that the Wii U can handle the game and it's supposed to be a launch title.
The Wii U tablet will serve as an Animus link, a persistent on-screen map and navigation tool... much like the bottom screen on the 3DS would be used, really. Any Animus Database entries and character bios will appear on the Wii U to increase game flow (though you still will have to look down at the tablet to read them).
During combat, the tablet will offer touchscreen access to weapons so that players can switch between various loadouts with ease. It can also be used as an alternate camera angle for Eagle Vision.
Assassin's Creed III will release on Xbox 360 and PlayStation on October 30, 2012 in North America. We hope that this includes the release date for the Wii U.