This is freaking awesome, of course.
What I'm wondering, though.. How're Nintendo and other developers gonna handle 3D integration gameplay-wise? They're gonna have to take into consideration all the poor souls who will be idiotic and turn the 3D effect off, so it really reduces the 3D aspect down to "lol dat looks kewl" instead of 3D looking cool AND affecting gameplay such as it being used to solve puzzles, etc. like in Rittai Kakushi e Attakoreda (which I know is not "true" 3D, but I'm using it as an example of how the 3D effect in general could be used to create new, original challenges).