In the Utility cycling bike haul/bike move thread:
http://www.bikeforums.net/showthread...ke-haul-thread , there were a variety of ways bikes were moved. The long tail cargo bike was one way or a large trailer was another. The way I saw one of the long tail bikes doing it though could be replicated easily enough. Basically the back of the long tail bike had a hitch where the front fork of the bike to be hauled attached after its front wheel was removed. The front fork attached to the hitch instead of its wheel. If you could get or make a hitch like that all you'd have to do is secure the front wheel somewhere.