Use DiskAid or PhoneAid to view the folders and files on your iPhone, put the application in to Advanced mode
Then you need to find the TomTom/ Documents/ North_America folder and copy the file "mapsettings.cfg" to your PC (Note, the screen shot below was taken of my unit using the UK&ROI map)
As the iPhone app doesn't support itinerarys I made the assumption the OP wanted a back up of Favourites and recent destinations, both of these are stored in the mapsettings.cfg file - Mike
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