MASPware GeoFence is a GPS-based surveillance tool for Windows Mobile devices. This program loads a virtual fence (GPX/KML) and starts alerts, if the current position is out of bounds.

This program can use any kind of GPX (GPS Exchange Format) data files and can also use Google KML files. You can easily record tracks with e.g. MASPware GPSmeter to use it as a virtual fence.

Furthermore, it supports the free quoox|TRACKER tracking system, to track the position over the internet.

MASPware GeoFence - the virtual GPS fence.