Thanks for the link to that program...will be playing around with that for ages now!
Here's a "cute" little container cottage..
http://tinyhouseblog.com/wp-content/uploads/2010/04/prefabricated_sunmmer_house.jpg
Some of these places are awesome. I could imagine buying a block of land far away for cheap, just for a little get away, and putting one of these container houses on it.