Not bad. Couple thoughts:
No idea how to change directions (at first). Some subtle watermark that would show "Tap here for left turn" would be nice. You could then have it fade away after the game started.
A better perspective, I couldn't tell which row I was turning onto, so I had to do a "zig zag" approach to get it right.
I was expecting more 3D elements.... what about some ramps or other ways to go in the "z" direction?
Also, works fine on the Incredible
