I'm glad this is here, but the lack of address book integration is bizarre and makes this more of a pain to use then it should be. I also wish it kept a history of recent navigation so you can go back to a place you previously navigated too. But the navigation works well and the UI is generally good. Certainly much easier to use than, say, TomTom. No true offline maps/POI, though. If you don't have a data connection you are SOL for starting a new route. It does, I think, cache the current route, but without a data connection you can't search for anything new or otherwise start a new route.