Brunton saw me coming when they came up with their Power Knife Multi Charger integrating a standard USB to Apple Lightning, 30-Pin, and Micro-USB. Sharp, but spendy at $25.

http://feeds.boingboing.net/~r/boingboing/iBag/~3/_6QRzMAxhUM/usb-charger-in-a-knife-form-fa.html