wow - what an ordeal - I feel for you. Had gone through similar digital warfare at some point, just not with Navigon. I doubt you are or will be the only one, so you can at least feel good about sharing your insights.

But before you give up completely.. have you tried [Only registered and activated users can see links. ] yet (the Google Docs page might need 30 secs or so to generate)? It's fairly recent and does accept the most recent new maps, too.

Before you install it, make sure you remove all other Navigon completely (force stop, delete cache, delete data, uninstall).

Let us know hot it goes. Good news hopefully, finally. Fingers crossed, thumbs up.