Use GyroPaint to create drawings all around you! Simply aim your iPhone in any direction and touch the screen.
GyroPaint uses gyroscope technology to give you an unique 3d drawing experience. It puts you at the center of a sphere and you can paint on it from the inside.
Your phone will only show the portion of the sphere that you're looking at, so you really need to get up and move around if you want to make a full panorama drawing.
Anytime during the painting you can set the display outside of the sphere to get an allround view.
(Note, does NOT work on 3g/s iPhones)