Nintendo files 3D tracking device patent

[TomaTito]

marley said:

Headtracking is not the same as 3D.  I'm not aware of any currently available games that make use of headtracking.  Sony hasn't confirmed anything (in either regard). 

The video posted by jigokutamago is one of them: http://www.nintendo.com/games/detail/xFv-4ah7Igv1-HewgD8wOyWAyRVbs3EM