Bacteria powered motors

Now this is just plain cool. Rather than burning up electricity or fuel or something other direct source of power these tiny motors are powered by bacteria! Think of the possibilities, besides cool nanobots that could be used to customise your body these things could eventually perhaps be used to power transport and all other kinds of stuff. But then, the microbots would become sentinent and demand equal pay for equal work and soon you'd be pushing them around in some kind of solid gold car. Aaah, then the cycle of life would truly be complete.

Nah, in fact I choose to think of them as tiny, tiny horses that we can control by using grooves filled with special sticking molecules that the bacteria move across. Its a damned nifty technique that makes me wonder why I didn't patent it years ago.