Where can I get a battery back-up for an iPod shuffle?
If I were going on a plane flight lasting several hours and wanted to listen to my iPod shuffle the whole time, is there a backup battery pack on the market that I could use with AAs or whatever to do that? If so, please give me a URL where I can buy one. If not, could one of you electronic engineering geeks develop one? Because I would pay good money to have it.