I had my ibook connected to the power outlet, so I thought I'd charge my shuffle on it while I slept. I didn't want to leave the screen up for prying eyes, so I shut it, automatically putting the ibook to sleep. To my surprise, the shuffle's battery was still dead 8 hours later. So I suppose you can't charge an ipod on a computer that's asleep? Even if I had the screen open, the ibook would of eventually went to sleep anyway.
