Additional Map Downloading
I'm planning to purchase a Navigation app for my iPhone. Right now I'm leaning towards Navigon. I figure I'll buy the US app since that's where I live. However, I also travel to and drive in Europe regularly. I can't tell if I can just buy a European map to add to my Navigon app, or if I have to buy their "Navigon Europe" app in order to get the maps. Does anyone have experience doing this with Navigon? Or any other nav app?