Following Apple's patents on multitouch applied to mice, MacBlogz has created this simple prototype of how a multitouch Mighty Mouse could look like. I specially like the fact that it's aluminum and its profile.
The fact is that the current nipple in Apple's mighty doesn't work very well. At least two of mine, which lose precision and stop functioning if you don't clean them regularly. A complete buttonless mouse, with a trackpad on the front, would be great. [MacBlogz]