I got claustrophobic just watching the video.
Been reading about this "trend" of tiny houses. I have found some interesting houses. Some very cute and interesting ways of conserving space and money. http://www.tumbleweedhouses.com/houses/ for the plans of the tiny houses and small houses.
In reading about tiny houses, I got linked to these Foam Dome houses. I think some of them have potential. I would consider having a home built in this style.