Fill her up with diesel. - Nanotech Cellphones.

Cell phones and other devices like laptops and handhelds may be powered by small jet engines in the future that run on diesel. A miniscule stack of coils and a magnet on a silicon wafer, can produce enough energy to power a cell phone, as the magnet spins it generates power.

Nanotech is the science, outlined by Eric Drexler in his book "Engines of Creation", which is, creating engines like this and other microscopic devices. An example would be a tiny robot that could be inserted into a human to do exploration of the human body and send data and video back to a controller.

Other studies in progress are manipulating atoms to create similar engines, which would be even smaller. Forget the top of a pin you could fit 100 on the top of a pin and still have room. It has been proposed that by creating small machines, that create smaller machines atom by atom, these microscopic devices could be manufactured successfully.

Of course because they are so small once it could be done you could make billions of them cheaply (scary?). What if they were like transformers and you could program them to transform into all sorts of shapes and machines. Simon says change into a tank, Simon says change into a shipping container, jump.......Splat!

They could land on a planet in a canister and assemble themselves into thousands of bots that do recon of an area. Then when they report back they can reconstitute themselves into a factory that creates building materials from local raw materials for the construction of a base station, where astronauts can stay on missions from an orbital space station.

Sound farfetched, when I was a kid if I had of told my Great Grandfather that I would have a device in my pocket that I play games on and listen to music on, and receive mail with, and talk to people with, he would have told me to stop exaggerating and to eat my vegetables or I wouldn't get any desert. The Net already existed then.