Read between the lines on this one and you kind of get the feeling that this is a battery run entirely on farts. This thing uses human or animal waste water to produce electricty and also purifies the energy source in the process, killing two turds with one stone. No word yet on when this will be small enough to use handheld devices, but the day will soon come when you can power your PSP by dipping it into the bogs.
Microbial fuel cell: High yield hydrogen source and wastewater cleaner [Eureka Alert]
