I was lying in bed last night with my wife and we were discussing if we wanted the Navigon app or the TomTom app. Here's the question.... If I purchase the Navigon and use it for a while and then purchase the TomTom when it comes out, could I transfer Navigon to my wife's iPhone through iTunes? I ask because I'm going on a road trip alone very soon and need a GPS. I'd rather buy the TomTom...but I doubt that will be out early next week. We sync our phones on different computers, so if I authorize her phone on my iTunes account it would sync to her's right?? Thanks guys and gals.