Here is my GPS application running on a Gumstix.
http://home.tampabay.rr.com/vescovi/gumstix/gumstix.htm
 
I am using Windows CE, programming in C# with Visual Studio 2003 CompactFramework
and deploying to my Gumstix Device. Its soooo nice to have interactive, real-time, IDE based
souce level remote debugging!
 
DV