Migratory iPhone 4
Try this experiment:
I imagine this would work on other smooth surfaces, though the interaction of of friction/electrical forces between the iPhone 4 and the cover of the box it comes in seems particularly well-suited for playing ouija phone.
If your iPhone is anything like mine, it will slowly ooze its way off the edge until it falls off the box completely. My initial thought was that maybe there was some micro-vibration permeating my desk but then it hit me: the gyroscope!
Place your iPhone 4 box face-up on a flat surface.
Place your (naked) iPhone 4 on top of the box, hanging somewhat off one edge.
Stare at it in awe.
I imagine this would work on other smooth surfaces, though the interaction of of friction/electrical forces between the iPhone 4 and the cover of the box it comes in seems particularly well-suited for playing ouija phone.