This ultra-clever device plugs into any 12-volt auto accessory outlet (the device formerly known as "cigarette lighter"), and let's you flexibly position your iPod Nano wherever its most convenient.

Usually when someone asks me how to build a USB charger I point them to Jason Striegel ... Unfortunately [ian] has a 3G firewire iPod so he decided to build a switch mode power supply to generate ...

Jason sent me his solar ipod charger how-to. The regulator may not be neccesary – but there are so many models, I don’t know if the new Nano’s hold up to the old power input standard.