Google Glass was totally invisible at I/O 2014.
Two years ago, Google co-founder Sergey Brin had a friend put on Glass and stream his dive from a plane to the top of San Francisco’s Moscone Center. The mood was one of excitement and almost awe — few people had even seen Glass in person at that point, let alone used it. Things were quieter at the I/O 2013 keynote, but workshops later in the week taught developers how to work with their headsets, which had started arriving just a month earlier. “There’s a real opportunity for Glass to become mainstream,” said product director Steve Lee in a fireside chat.