We do think alike. I had always been curious about wheeled luggage, and finally wrote a post on it (http://caddellinsightgroup.com/blog2/2006/12/a-very-brief-history-of-wheeled-luggage/). On re-reading it 4 years after writing it, I think I was a bit prescient about the next step in wheeled luggage, which is these 4-wheeled bags that people walk along with as if they are showing dogs at the dog show.

regards, JOhn