Power Up With TunePower
"We got a chance to play with the Belkin TunePower portable Zune battery, and found it's actually pretty handy for people who travel. The TunePower is essentially a large battery that latches on Yoda-style to the back of your Zune—except Yoda didn't stick his charger into Luke's dock connector hole."
Nothing like a bad (but funny) Star Wars joke to start off a review! Gizmodo takes a look at the backpack style battery add-on TunePower from Belkin. Man that thing sure is thick, but sure could come in handy for those long trips away from a charger.