Maps no longer available
As others have noted, the central USA maps are no longer available, making the app USELESS for anyone who buys it. I would strongly suggest you dont.
I note the lack of response or redress from anyone from Garmin/Navigon, so I guess they dont really care. Perhaps they are spooked by the built in navigation capability and turn by turn instruction that will be offered by Apple as part of iOS6.
Whatever their reasons, I intend to vote with my feet and NEVER by another Garmin product - I feel totally ripped off.
RunBoyThree about
NAVIGON U.S. Central, v2.1