I don't see any discussion on that page about how this project helps house "the world" (which I assume to mean the developing world). It looks like the only places this has been used is in burning man, and there is no discussion of plans to deploy or sell them elsewhere.
It's been built in Haiti, Africa, Sri Lanka - test units, results positive. Getting over the hump on a deployment with refugees living in one (rather than the odd aid worker / volunteer) is taking time.
There's also this: http://files.howtolivewiki.com/somalia_or_sudan.mp4
I found the video on a search, and have not discovered who made it or what the story is, but it's clearly the kind of diffusion we've always hoped for!
