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!!! Project servers were closed in the beginning of 2012 because the project was not actual anymore (massivity using Android and iOS devices instead of "simple" mobile phones). But source codes are always available as usual !!!
A simple mobile j2me/web application that provides positioning of mobile devices connected to GSM/UMTS network or via GPS and lets you share location info by SMS or email. This project also contains GeoSignature Server j2ee application.
...Software runs on Java platform so it is supported by many mobile phones. It is required that mobile phone supports Bluetooth connections (JSR 82) for GPS and File connection (JSR 75) for exporting trails to kml files.
Application can also render maps from Open Street Map. Maps can be downloaded over-the-air or preloaded to memory card. Other map providers can also be implemented easily in code.