Yes, you are correct. I remember seeing that, too. So, I found it again. It's in the Nav tutorial, which you get to via the popup screen after clicking on a 'feature' (like the nav system). In the tutorial, under "How to" "change the covered area", it shows you can click 'Menu', 'DVD', 'covered area', and then scroll thru all 11 area maps, which show that Massachusetts is TOTALLY covered, but Texas has only 9 main areas which have detailed info (maybe 10% of the state). That probably means buildings, and phone numbers, etc., because it does have streets in small towns in it. I put my son's address in "my places", and it's in Whitefish, Montana (which needless to say, has no 'details'). It showed the right street, but was off by .3 mile on the location. So, areas like that, and where I live, must just use the main roads for routes. I guess the difference is the couple hundred bucks I paid for the MapSource program, and North American City Select maps for my Garmin. I still like the Lexus system, though, for all the fancy stuff. On short routes where I can see streets on the map that are not "on" the route, I can take them anyway, and on long routes, it won't make much difference. I'm just an anal-retentive programmer type, who has to know!