ReliRescue GPS is one of the world's best free utilities for your Windows Mobile Phone or PDA. It supports a rich set of features such as location sharing (SMS/e-mail), waypoint management (gpx file format), track log recording, map view and map caching (for offline browsing), remote location query and alerting (find your lost phone when battery is about to get drained).
Windows Mobile 6.x
Windows Mobile 5.x
||Microsoft .NET Compact Framework 2.0