A FYI........... some hacker has broken the Garmin encryption. There is a key generator out that unlocks all Garmin maps for all Garmin units. Not sure how Garmin can counter it but I would imagine their maping products have taken a hit over it. You used to get 2 unlock codes with a Garmin map product but they changed it to one now. Stinks if you have 2 units you have to pay double. The Garmin maps and routing are nice if you drive to specific addresses every day. My GPS doesn't use the NT version out now.