GPSTools for Windows Phone 7:
GPSTools transforms your phone in a powerful GPS receiver.
Besides the standard Geo coordinate being displayed, is also supportsÂ 40 different UTM datum conversions like WGS84, Clark1866, Bessel 1841.Â Most of these datumâ€™s are still used on (nautical) maps.
New Points of interest can be easily added. Adding a new point will automatically use the currentÂ GPS location. This new point can be easily be modified when the geo coordinates of you point ofÂ interest is known.
Distances and bearing between selected points are automatically calculated.
When the current location is selected, GPSTools can be used to track you journey betweenÂ selected points, adding speed and heading to the distance and bearing information.Â Speed and distance info can be displayed as in Mile, Knots or KpH.
GPSTools is a free app, but requires a active internet connection for advertizing.
GPSTools can be donwloaded here.