Dee here...
Before I discovered TD, I was thinking about a tiny cabin as a place of retreat and get away. I don't have land, so what is a guy to do? Build a model!
That's what I did about two years ago. If you wand to see the pictures of my "Hermitage" click on http://www.nfdc.net/home/cbdb/Micro%20Cabin.htm
There are some interesting links at the bottom, one link is to a tiny house company. They have Vardo on wheels http://www.tumbleweedhouses.com/houses.htm
I also found a page about the revival of the caravan/gypsy wagon
http://www.daphnescaravans.com/
Some of the products relate to Teardrops and living small.
Small can be beautiful!
DEE