Yes. I bought this. It was useless to me, because the map data is stored by county name. How often will you know which counties you are going to pass through? To make matters worse, all the county names are truncated on my mac, so I found this product to be utterly useless.

BTW, I am now playing with the Garmin Streetfinder III GPS. I like it so far. It's not cheap, but it's very good.