The “eye-tech” future of vision http://www.bbc.com/future/story/20120418-the-eye-tech-future-of-vision …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
The “eye-tech” future of vision http://www.bbc.com/future/story/20120418-the-eye-tech-future-of-vision …