Since the latest version of Maps with less bright screen for night driving, I have retired my 3 year-old Magellan RoadMate and use my Moto Droid exclusively. I have used in for trips between Richmond, VA and Baltimore, MD; Richmond and Raleigh, NC; Richmond, VA and Edgewater, FL and around Reno, NV. Beginning next week, I will be using it in the upper midwest, North Dakota, South Dakota, Minnesota and Wisconsin.
The Droid locks onto satellites faster; the maps are clearer that the RoadMates. The voice navigation of the Droid is not a feature on my RoadMate. The Droid's POIs are more current than any stand-alone GPS I have seen.
The only problem thus far is that sometimes Google Maps/Navigation shows me off the interstate. This 'drift' has not occurred off interstates. I always have the GPS active.
Bob