So far I haven't had loss of addresses even when switching between states, which I have to do semi frequently.
I am getting a little better at entering addresses, though I still think it is much harder than my little stand alone Garmin. The voice command asks too many questions and seems to take forever, and sometimes kicks me off before I'm even done.
What I want to figure out, is how to use Siri from iPhone 4S to integrate with the nav system to make my life easier
Thanks for the advice so far much appreciated.