It looks like one of these babies could work great for the packrafter that wants to carry more gear on long treks. It would probably strap on much better to the bow of a packraft than a bicycle I think. I want one of these because I am a homeless by choice packrafter and want to carry more gear and use the rivers more for transportation routes in addition to just adventure. I can just pull my gear behind me between rivers.
http://bicycledesign.net/2010/04/monowalker-hikingcycling-trailer/