I'd like to see unity 3D used in a fairly simple way, much like where god of war has a sequence of buttons to kill a monster. So no complicated tracking of 3d position, just hit a button at the right time, it checks in the database your doing it, and if you are, you go through a fixed animation of butt kicking!!
Basically this would just make unity 3d a really nice front end for a 'get the right sequence' game. But that's cool to me 
