Snap 'n Tap is the first of a new wave of apps allowing you to interact with your environment through the iPhone.
Draw a course with pen and paper, photograph it with your iPhone, then drop a marble on the screen and watch as the state of the art physics engine makes it roll, jump and bounce around your course. You can draw intricate marble runs, fiendish labyrinths, or just watch a balloon skip across the evening skyline.
Snap 'n Tap allows you to interact with the marble through a more...
- iPhone or iPod touch