Jordan noted that many interface advances are little more than incremental updates to archaic ideas. Take the QWERTY keyboard, for example: It may get modern improvements like backlighting, but it's still the same input method that a newspaper editor designed to prevent clogs in typewriters. The Google evangelist sees Glass as a complete break from that past. It proves that computing interfaces can be simple and non-intrusive; you just have to speak a command to take a picture, and the display all but vanishes from your view until it's truly necessary.
Despite all this optimism, Jordan is still (relatively) pragmatic when discussing Glass' role in the technology world. He sees the wearable as an assistant that makes sense within the rapidly diversifying range of devices that we use every day. You'd likely only use a laptop to write a book, for instance. However, it may ultimately change how we use technology. Jordan observed that he uses both Glass and his smartphone less than he did in the past -- Glass makes him that much more efficient at accomplishing common tasks.
Source : Enagdget
