December 13 - 1:30pm EST   Sony today took its time at the Eco Products expo in Japan to reveal a digital camera concept that it hopes will spur environmentally-friendly electronics in the near future. The Odo camera would switch from the batteries of most cameras to a unique design that relies solely on human power" spinning a wheel on top of the main body for about 15 seconds charges the device until it can take a photo. The device includes LED indicators to indicate when it can take its shot but has no display of its own to save power. Photos are instead seen by docking the Odo into a flowerpot-like USB cradle. [full story]