More Stanford iPhone Homework
Not content to have exceeded the assignment's requirements by adding a graphical layer, I went a few steps farther: I added support for animation and multitouch gestures. The latest version of the source lives here, and it's chock full of comments this time.
Once again, it's under a Share-Alike-CC-license. Don't hand it in as your homework.
Once again, it's under a Share-Alike-CC-license. Don't hand it in as your homework.