This program allows you to exchange your and your friends geographic positions, between a various mobile devices. Each device takes all positions and displays on one screen, where you can observe where and how far all others are, at the moment.
X.GPS works in this way:
You connect your device to Internet (any way)
You connect your device to GPS receiver (any way)
X.GPS takes your GPS position and uploads it to Internet server automatically
Then X.GPS read the server reply, where all other positions are
All received positions are displaying on the screen relative to each others, with calculated distances