Fuel from a fungus. Could be waaay cool.

Just read an article in The Week (killer news magazine IMHO) about a plant pathologist who discovered a fungus in Patagonia that produces hydrocarbons as WASTE. The same combustible compounds found in oil, gasoline, and diesel fuel. He said the hair stood up on his arms when he realized what the little sucker was making! He could smell "a strong smelling gas" and brought the fungus into his lab in the hope that it might have anti-biotic properties. Instead, it can make biofuel from common cellulose.
Cool part is that it produces the hydrocarbons directly - it does not need processing or distilling like other biofuels.

Here is a link to some more details:

http://www.treehugger.com/files/2008/11/mycodiesel-made-by-patagonian-tree-fungus.php