Yeah Dave, a while ago I was listening to a PODcast that was discussing the next generation of batteries that should achieve really long life and not degrade with charging/discharge cycles. I can't remember now if it was on a Naked Scientist program

or Starstuff

...
Nanotubes had something to do with it...
Anyway, I'm not totally surprized by the news but I wonder if they are really there yet...
Al.