USB Battery

We (Shellie and I) created a usb-battery. should power any small mobile device that uses a 5v charge.
the pieces were simple, a female usb port-i used a usb-extension cable and cannibalized the female port. a 7805 voltage regulator for $1.50, a 9 volt battery and a battery clip. wired using only the ground (black)and power (red) wires and following the diagram for the voltage regulator. i then hooked up the other me male usb portion to the female portion to the multimeter making sure i had 5v. horrible soldering job, if i do say so myself.

next project is a 12v firewire battery for the ipod.