And after my first demo, I have made some changes to the route building portion of my software.

The updates are:
Locations are now filtered out of the drop down list, and the map, after they have been added to the route. (Still available for other routes.)
A map was added showing the locations in each route.
Buttons have been added to move locations up and down in the list.
Delete is now an icon, and verification before deleting has been added.

Here is a quick demo of the updates running in Chrome:

http://www.youtube.com/watch?v=a1Y3qNZYIyg