I'd say that's the samllest powered plane ever not including the hangglider since you have to measure updrafts. Looks pretty light, must have the nano-materials sprinkled in.

Also E-PAPER is here! No power consumption when not changing the page I think. So it should consume as much as a wristwatch; so it's comfortable for my free books from the Net; maybe should be a boon for trees too.

http://www.faz.net/d/invest/meldung.aspx?id=27219260

Of course, the profit people will want to charge like 300 dollars for a 19 inch monitor version (costing a grain of rice to produce) stating manufacturing renovation costs.
The eteranl manufacturing renovation costs.
And implimenting a terminator-esque autonomous plant would be too dangerous I guess, since robots don't really care about money unless there's something I missed.

Other cool stuff about HHO gas:
http://www.waterfuelconverters.com/