Bjoern writes - "Here is a quick and dirty hack to perform mobile GPS-referenced Google Map searches on your laptop (e.g., where's the next coffee shop around here?). 42 lines, about half of them comments. I put this small demo together for last weekend's Silicon Valley Code Camp to show how easy it is to get up and running with GPS for your own projects. " - Link.
Related:
GPS projects, hacks, mods and articles @ MAKE - Link.
http://blog.makezine.com/archive/2006/10/how_to_gps_google_maps_in.html