I just remembered the Powerfilm usb array.

[Linked Image from ecx.images-amazon.com]

The down side of this one is that it needs to have 2 AA batteries installed and somewhat charged to work as a usb charger. The up side is that it has flexible panels and a built in charger for AA batteries and comes with 2 Eneloop batteries (the best rechargeables IMO). It will also charge a usb device from the batteries without the sun.

Last edited by JarheadJournalist; 02/12/12 05:37 AM.