Heh.. It would be fun to have, but I don't know. Won't be making any money from any form of transportation, where I could with a camera.
This is the one I was looking at
http://kawasaki.com/Products/Detail.aspx?id=200
Oh well, it's going to be a while before I can afford either, so I have time to decide. I think large format might be too cumbersome for me, and even an RB/RZ setup might... I enjoyed very much throwing my Leica over one shoulder, my tripod in its bag over the other, and my second lens in my shirt pocket and going for a ride to shoot some landscapes last week. Didn't weigh me down much, but I can go a little heavier if I'm hiking.