GPS Helper Tool, is a Tool designed mainly for developers, but anyone that wants to load initially GPX files can do it.You can load Gpx files and the application send positions every especified seconds to the device or emulator and you can test your application that needs GPS info. Normal people can use it to show gpx traces in google maps app I.E.Just load a file from SD and press start button, GPS Helper tool can run at background as service.Please report any bug and if you want new features or new files support please feel free to request. I will add new features asap. ;)GPX files can be downloaded for free at http://www.openstreetmap.org/traces/tags can be used to filter out.