I got these pictures in an email, thought it was interesting.
This might be the new home of the future, Pictures are not in a particular order but you get the Idea. I actually came up with a design along the same line to use in Iraq except with the idea to bury them as a bunker/command post (but not as fancy).
You could also dig these into a hillside as extra protection. These shipping containers have a good load strength if buried correctly.