this is a follow-up clip that bioplasmik originally discovered back in August: http://clipmarks.com/clipmark/93F6E652-35E5-4A6F-BBF9-57A4CB171D8F/
I included some extra information and interesting photos from flickr (thanks bioplasmik)

I saw something on tv once, a while back now, in or around Toronto ON they were building structures with a similar idea (being able to expand vertically as needed) only they were 3 level cubes turned up on their point .. never heard anything further, I wonder if they met the same fate ..