The Powers That Be may think that they're pulling the wool over our eyes, but we can see the planned fate unfolding in front of us. Before long, our arms will be effectively useless -- after all, once you can game and navigate with just your face, why bother pumping iron and keeping those biceps toned? Over at Wireless Japan 2010, the Nakajima Laboratory at the University of Electro-Communications showcased a prototype that helps explain the latter. Dubbed a Wearable Personal Navigation System, this GPS-infused pair of glasses has integrated LEDs in the frame that wearer