Glass is, simply put, a computer built into the frame of a pair of glasses, and it’s the device that will make augmented reality part of our daily lives. With the half-inch (1.3 cm) display, which comes into focus when you look up and to the right, users will be able to take and share photos, video-chat, check appointments and access maps and the Web. Consumers should be able to buy Google Glass by 2014.