I haven't looked at the flash presentation of the tent, but some pictures I saw elsewhere were pretty neat.
http://abc.net.au/arts/design/stories/s697387.htm
And a book of off-grid houses, billed as houses for real people. Off the Grid, by Lori Ryker.
http://www.amazon.com/gp/product/1586855166/ref=ord_cart_shr/102-0546009-6592130?%5Fencoding=UTF8&m=ATVPDKIKX0DER&v=glance&n=283155
and a slide show on an award winning all green house in England that is for sale. I think we've seen it before. The owners are supposed to be downsizing. There 's a nice minimalist bathroom--not all that tiny, though, about the 4th slide beyond the rock wall one (bottom right photo on the opening page). You can just see the toilet paper in the foreground.
http://www.ribaworcestershire.co.uk/events/cobtun6.html
All from Treehugger, directly or through HUGG. Both of which can be kind of fun.
http://www.treehugger.com/
http://hugg.com/