Dutch company Waypoint are finishing the development or a PC software entitled "EnRoute" that will calculate the best road for motorcycles. It has been specially developed for bikers. It will not look for the fastest route, or the shortest, but will look for roads that have many curves, or are scenic (like next to a river or lake).
The EnRoute software will plan your motorcycle trip on the computer, allow you to visualize the trip on Google Earth, and then permit you to export the track to Garmin, Navigon or TomTom GPSs.
The software also comes delivered with some 600 preplanned itineraries in Europe.
Available September 2006. No price is known as of yet.
Click here for more information (in Dutch)