Having your own web-based mobile GPS tracking system doesn't have to be a complicated and expensive ordeal. Now you can build your own simple mobile GPS tracking system from a laptop and have the data delivered, via Internet, right to your own computer. With the addition of a webserver, and Google Maps client-side JavaScript, you'll be able to see the data over the web on an interactive map! OpenDMTP is a commercial quality Open Source protocol and framework designed for the transmission of location based information over high-latency/low-bandwidth networks. Using the OpenDMTP C client reference implementation, we'll describe how to build your own GPS tracking system, and explore the various options that are possible once you have the system up and running. The Basic Components: Building your own web-based GPS tracking system requires 3 basic components: Mobile Client Hardware The mobile client hardware performs the collection of GPS messages, analysis of var...