A simple physics based experiment in Actionscript, simulates gravity, rebounding and surface friction, with some tweaks like psuedo3d shadow. Just pick up the ball with your mouse and drag and release it in any direction to start the fun.
This was developed to start work on a physics library to be utilized in a flash based version of the very cool Steering Behaviors for Autonomous Creatures . Eventually I'll extend it to 3d, which isn't so much a problem in ActionScript, however I haven't figured out how to interface a 2D mouse for throwing in 3D.