I have a quick suggestion with map downloading. Is it possible in the next update to have a feature where you can download the maps by Zip/City/County/State/Country? It would be cool if for example I can download the enter maps for the USA with one click. It's kind of confusing on how to do this with the Latitude/Longitude coordinates? Thanks again for the excellent application!
http://maps.google.com/maps?f=q&hl=en&q=Seattle,+WA&ll=47.60651,-122.330532&spn=0.092127,0.143509&om=1