Here you go, another way to stretch the untethered playback
of your iPod. Meet the Elecom AVD-DCAA2 series of external battery packs which will keep any iPod sportin' the universal dock pumping the tunes for up to 2 hours (as tested with 1G nano) off 2x AA batteries. Remove the batteries and the whole kit compresses for easy portability. Sure that off-center slab ain't pretty, but it has to slide to the side to maintain access to the headphone jack, Jack. Available Martin and Lewis or Amos and Andy starting mid November for ¥1,890 or about 16 bucks.
[Via Akihabara News