I am doing an app for WP8, that uses Geo-location in background execution, and my code is located here.
http://msdn.microsoft.com/en-us/library/windowsphone/develop/jj662935(v=vs.105).aspx
All works fine when it is running in the background, the app show a toast saying where the phone is... but I have no idea how I can stop the background service, from the user perspective.