i saw this posted in another thread and decided to google it. it looks like a reay fol product and something i would like to pick up at some point. i would most likely go with the one with the charger but at $30 i'm thinking i could just open the regular one and solder a the usb cable i have magic around to one of these.

my only question was about the one that charges. wondered if it was just a solar charged or if it would power items from it's batteries.