Could make a sweet ass game with this.
The only thing I didn't like was that I couldn't see my character when he was behind a wall or other object. Maybe some kind of x-ray feature, so the wall would turn clear around the character.
This would probably be really hard to do, but it would be amazing if the player could rotate the view 90" at a time, like in the first SIMS.
Overall, quite an accomplishment, I hope the rest of the game is as high quality as this sample.