Google nose: https://www.google.com/intl/en/landing/nose/index.html#video Twitter: https://blog.twitter.com/2013/annncng-twttr Youtube: http://www.youtube.com/watch?v=H542nLTTbu0 Guardian Goggles: http://www.theguardian.com/media/2013/apr/01/guardian-goggles-augmented-reality-specs?CMP=twt_fd...