A feature should be added to both Maps Loader and the phone Ovi Maps application to show the maps which have already been downloaded and installed.

Maps Loader should also show which version of mapping data has been installed and whether a later version is available.

The way it is now with Maps Loader (v3.0.28.0) and Ovi Maps (3.03) is that there is no way of knowing what maps have already been installed. The only way to be sure that the latest maps for a country have been installed is to download the data again!