I want to make a windows phone app that gets the users location and then checks wether their location is within a certain area (a mapped out polygon or inside a square of coordinates) and then deliver information based on if they are within that area or not. This is referred to as geofencing. Is their an API out their on an example of this that makes this very easy? All I want to do is map out a location and see if the users coordinates are within that.
Thanks