This is an intriguing project. I would like to learn more about it and follow along. I did a search but wasn’t able to find any useful links.
I would appreciate it if you could provide us with the links.
This is a cool idea. We've had a similar offering on our Virtual Earth mashup called Atlas for a couple of years now.
http://www.freshlogicstudios.com/Products/Atlas/GpsDemo.aspx
We have a similar Windows Mobile client... but more importantly we have an open web service API if you'd like to build your own device.
http://www.freshlogicstudios.com/Products/Atlas/GpsApi.aspx