Don't you just hate it when you run out of battery power for your mobile devices? Then you need the Just Mobile® Gum Portable Power Pack. With a capacity of 2200mAh, it can charge a typical mobile phone twice to full capacity. Only 70mm in length, it's small enough so you can throw it in your handbag (or briefcase or laptop bag) and forget about it.

With Just Mobile Gum, you can yak longer on the phone, use your GPS, play your MP3 , veg out with your PSP, surf the internet on your PDA...you get the idea. It uses the standard USB port as output, so simply connect your USB sync cable and you are ready to charge. The LED indicators let you know the charge left in the device and has an ON/OFF switch for power saving.

$39.99 at Just Mobile.