DV Hardware posted some info on the USBCELL batteries
USBCELL today released cool new batteries which can be recharged simply by putting them into a USB port.USBCELL batteries recharge through USB port
The new USB NiHM batteries from USBCELL will certainly be able to make our life a bit easier. These batteries can be used like a normal battery but they make recharging devices redundant because they can be recharged simply by putting into a USB port.