I have used the North America version of Navigon since mid-2009. It has been better than any other navigator I have used. That is why I bought the European version for upcoming vacationing. However, a few in-app purchases are not available, as touted in iTunes. I am disappointed not to see the Michelin Red and Green guides, and the Feinschmecker available for purchase. Nor can I find these modules available for purchase on the Navigon website.
AcuteWatcher about NAVIGON Europe, v2.9