Duracell has announced a new and very small USB charger designed to install into the DC adapter in your car. The device has a USB outlet on the front that can charge any device that charges via USB from the iPhone and iPod to many other devices.
When the charger is plugged into a DC outlet the USB opening glows blue to show it's ready to charge devices. The cool part about this charger is that since it has a universal USB outlet you won’t need to buy car charge cables for each of your devices.
Three different connectors are available for the device including one for the iPod, cell phones, PDA, MP3 players, and other devices. Pricing and availability for the device are unknown, but I wouldn't expect it to cost very much.