I was running last night when all of a sudden my shuffle died... As pissed off as I was I couldn't help but notice a clicking noise coming from my hip. I looked down and it was just my earbud wire hitting the shuffle. Then that got me thinking. Could they use the same technology that is in those flashlights that are powered by you shaking them, in the shuffle. Obviously the shuffle doesn't need that much power because I've charged it once this month, and what little power is made could be used. I'm not sure if this is possible, I was just thinking. It would bring new meaning to the name "Shuffle".