Here is my Gumstix GPS application phase II.
http://home.tampabay.rr.com/vescovi/gumstix/gumstix%20Phase%20II/gumstix_phase_ii.htm
 
I developed with C# Visual Studio 2005 and used WE-DIG's project DrumStix's Windows CE 5.0 BSP.
 
DrumStix BSP project on GotDotNet:
http://www.gotdotnet.com/Workspaces/Workspace.aspx?id=df0ed5bb-f1b0-437b-b8cf-0fd690d3a547 
We-Dig project DrumStix:
http://www.we-dig.org/Forums/default.aspx?ForumGroupID=7
 
GPS module is from Spark-Fun Electronics.
 
DV