Tilt A world - similar to marble madness, but using the camera.
I was browsing online for possible additions and I came across this title. It doesn’t use the SE motion sensor/accelerometer but using some interesting algorithm to decipher camera data for motion needs. The game is called 3D tit-a-world (by GestureTek) - they have quite a few games which use a similar idea.
I have not tested this little gem, but I am sure it will not disappoint.
The download/info site: Go to it!