I've been cleaning up after a flood disaster for the past few days, the most amazing technology i've seen in that time is the bobcats and their drivers. It takes 10-15 people a few hours to empty a house of all it's waterlogged belongings on to the street, and then 15 minutes for the bobcat to get it up on the back of a truck.  When I see a tech demo like this I'm very optimistic about it's potential for disaster relief, where simple structures, shelters, and platforms would be of great benefit.