Swiss Army iPod accessory
It's an iPod case...it's an iPod battery pack...it's an FM transmitter!
Convergence among devices is one thing, but it's happening with accessories as well. The Duracell PowerFM ($79.99) from Battery-Biz is three iPod Nano (1G and 2G) add-ons in one: an FM transmitter, a protective silicone case, and a battery pack.
The transmitter sends your iPod's audio out to any FM radio receiver within about 8 feet via a user-selectable frequency, while the lithium-ion battery pack doubles the life of your iPod's built-in battery. The PowerFM isn't hideously obtrusive, and a pass-through port on the bottom lets you hook up other iPod accessories that use the iPod Nano's dock connector.