The Tekkeon MyPower ALL portable battery pack. $119.95 gives enough Lithium Polymer juice for an extra 4000 photos, 100 hours HD MP3 player, 10 hours camcorder, 12 hours PDA, 80 hours CD player time and 3 hours laptop. Apparently works with lotsa products.
With myPower ALL, you can enjoy hours of extended play time on notebook computers, portable DVD players, digital cameras, camcorders, MP3 players, portable CD players, mobile phones, and other portable consumer electronic products. Selecting the right voltage for a personal device is done quickly and easily. Because myPower ALL automatically resets to the lowest setting after a device is connected, you will never overcharge your portable device.