I'm not so sure Unity will bring PC gaming per se to WiiU - while there are few good points there about GamePad (I can see how both Wasteland 2 and Project Eternity (being typical CRPGs) can be ported to WiiU relatively easily cause of it, and actually working decently), I'm not so sure that many people would be willing to trade keyboard+mouse in those (and similar) games for (WiiU) tablet.
On the other hand Unity does support all current console platforms - though, truth to be told, not much Unity made games were actually published on them - according to official site: 4 for PS3, one is in development for 360 (that Uncharted ripoff - Unearthed), and Wii has 2. This is in contrast to quite a few iOS, Android and PC titles...I guess main problem is getting through Microsoft/Sony/Nintendo barrier to actually get to the market. That's where I see Nintendo having a great opportunity if it plays smart...with current model I'm not sure we will be seeing much of Unity projects published in the future. Making iOS/Google Play type of market on the other hand would risk making yet another over-saturated, low visibility game market. Somewhere in between is I guess what's Steam is trying to achieve with Greenlight initiative, so having some type of less restrictive, but still not (almost) totally open market would probably be ideal for small teams, and would differentiate WiiU from other 2 consoles.







