This is quite a fun game. It's a pinball on your iPhone! Endless hours of enjoyment.

To play this you'll need to actually install it on your computer.  The instructions say:

You need to add this source to your installer program:
http://iphone.r4m0n.net/repos
The '0" in r4m0n is a 'zero'
Once you have that installed you will have a folder in installer called 'iPhysics', from there, download iPinball, and other packs.