I was looking at my Galaxy Tab and noticed that it has the same problem that the GNex has. Both lump the address fields in contacts together in one place. If you edit details on the web, Google gives separate fields for street, city, state, zip and etc. On GNex everything is lumped together and after you edit a record if you look on the web everything is piled in one place. And usually not even the street address field. Google does a pretty good job of displaying things no matter how messed up they are but there is clearly a huge disconnect between how contacts work on Android and how they work in the current Gmail web interface. I wonder how much this affects Nav and Maps?