It would be great to have routable maps for as many areas as Garmin has, especially West and SW USA where I'll be riding a lot for the next couple years before I depart on a rtw trip. Some questions: 1. Is there a worldwide subscription service that enables access to all of Garmin's maps? 2. If I'm stuck having to purchase every 24k map that I need, is there a way to see and use the maps on all my devices without having to purchase one for each? 3. When you purchase a map on a microSD card, can you use that map in whatever device that the card is in or only the one device that has been registered? 4. Will I be able to view that 24k map on my laptop in basecamp as well as my devices? THanks for the help!