xGPS Manager is a program that allows you to manage the data stored, gathered and used by xGPS.
More specifically, it allows you to:
Download Maps (navigation and relief) from Google Maps, and send them to your device.
Retrieve Maps from your device.
Retrieve Tracking Data (GPX files), and map them.
In order to send or receive files, you must have a computer (Mac, Windows or Linux) and a wireless router.