Here is a catalog of some of my, and other contributors works. At this point in time there is; a Robot Arm with 6 full axis of movement.
Here is a little it of information on a project that uses a Pretec Compact GPS system. I modified this to connect over standard serial instead of compact flash. I also managed to maintain both serial, and compact flash functionality in a very simple manner.
There are many other projects on this site, please take a look. Use the navigation bar on the left to select the pages.