Hey AndySDU,

From what I found, the Android unit only comes with Google maps pre-loaded as the nav software, any other software for offline use will require purchase from the android market place.

The Dynavin unit should come with the gps antenna included in the packaging. See page 12 on this install info and what's included in the box: http://www.jandtdistributing.com/dyn...UIDE%20E39.pdf