OK I finially got the map installed 720.1609. So far I dont see extra details or what so ever however some files are smaller on the 710.1584 (the one you download from TomTom home). For example the POI files. its alot bigger on the 720.1609. So I guess TomTom is trying to fit the map into the tiny 2GB device so they have to delete something or recompress some other files who knows? None of the CS staff know what I am talking about diff maps and the Level 2 guy said they have to write a report to Europe and reflect the problems because all the engineers are THERE! I can feel TomTom NA CS is trying to help me out but for some reason they dont have the resources (like why there are so many diff version of maps.. etc) to solve the problem for me and the best they can do is to allow me to download the 1.9GB map which will not fit in to the internal memory at all. So for those taht wonder what are you missing. I can tell you not much. Not that I can see so far. And I can feel TomTom is just like any other company (e.g. Microsoft Windows 3.0 was full of bugs) when they are glowing and improving so I decided to stay with TomTom and see what they are up to! Sorry for my bad english and hope this solve the mist a bit.