I'm excited to try them out myself at some point. I actually think that there are enormous photographic and artistic opportunities with Google Glass.
"In 1938 Walker Evans went underground to photograph passengers on the New York City Subway. Interested in capturing the everyday routines of anonymous people, Evans wanted to catch his subjects unaware. “The guard is down and the mask is off,” he wrote, “even more than when in lone bedrooms (where there are mirrors). People’s faces are in naked repose down in the subway.” Between 1938 and 1941, using a hidden camera, Evans photographed his subjects in these unguarded moments. Evans solicited the company of his friend, the photographer Helen Levitt, in the belief that his activities would be less noticeable if someone accompanied him.
In order to create his clandestine photographs, he orchestrated a way of taking photographs “undercover.” He painted the shiny chrome of his camera black and hid it under his coat so that the camera lens surreptitiously peeked out between two buttons. Despite the public setting of the subway, Evans managed to capture people lost in their own thoughts and moods, displaying a range of human emotions. With these black-and-white photographs, Evans managed to pull off a complicated feat: creating truly unposed portraits."http://www.moma.org/learn/moma_learning/walker-evans-subway-portraits-1938-41
I think a lot of photographers and street photographers especially, try to learn to be invisible with their cameras. I think Google Glass moves us further in that direction. It makes it easier to have a camera in front of your face and catch more of life's interesting and unguarded moments. There's that moment of realness between when you photograph someone in public and when they realize that a camera is on them. During that moment, this is when some of the most magical moments happen photographically speaking. Sometimes magic happens when people are posing or are aware of the camera, but it's those intimate life moments that are often the unaware ones.
I think it would be interesting to make a book of street photography all taken with Google Glass. I bet you could do some really interesting things with them creatively.
I'm practically blind in my right eye so I'm not sure they would work for me though until there is a left eyed version.