THIS IS FAKED.
Look here:
http://wii.ign.com/articles/116/1162212p1.html
IGN admits this is a mockup. This is the exact controller used in the image. The only difference being:
An picture of mario kart easily found with a google image search (page 3)
As for the console itself, it could easily be a photoshopped router - look at it!
Then, somebody made a slideshow, took some fuzzy pictures at strange angles to make it look legit.