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 wearers can see in their periphery; there's also a magnetic direction sensor, which detects the orientation of the user's head. Once you point your face in a given direction, the LEDs change color to let you know which way you need to head in order to walk, sprint or gallop to your destination. It's hard to tell how long we'll have to wait before we see these on Pearle Vision's Buy 1 Get 1 rack, but the video after the break ain't making it any easier to wait.