For developers, GpsLayer is a class within the (for Android, WPF, or Windows Phone) used to display a device's current location on a map.
Ideal for importing GPX files, managing waypoints, and viewing maps from Google or OSM. 3. ArcGIS SDK Development
If you are working with or specialized inspection software, "GPSLayer" is a custom application ( GPSLayer_Arc9_POSM_MapReader.zip ) often used to add real-time GPS tracking to published maps. How to get it: It is hosted on the POSM Download Website.