I'm convinced that Google Glass will fail for this exact reason. People really don't like being recorded. Even though surveillance cameras are widespread, it's much more personal when you can see the person recording you.
All it will take is one creepy app for Google Glass and people will start to revolt. Imagine an app that has a large amateur porn database that does facial recognition on people around you and displays naked images of similar looking people. Obviously that would be an incredibly hard software problem to get working well, but it doesn't have to work well; in fact it doesn't have to work at all. All that is needed is a single article about it in the press and it will take off.
I imagine that a very loud privacy vs free speech debate is imminent.
I've worked extensively with sensored gloves in my job, both designing the gloves, and developing software to do cool things with them. By far the most difficult thing to do is make a compelling application that effectively utilizes the capabilities of the hardware. This is a very cool piece of hardware, but it's success is going to be defined on whether or not they are able to make it better than existing input devices, which tend to be quite good already.
This was a really interesting talk. Does anyone know where to find other lectures (or whatever this is technically called) by other influential programmers/computer scientists?
I'm able to start the login process in Safari on my iPhone and when I get to the prompt for the one-time code, switch to the Authenticator app, double click on the number to get the copy icon, then switch back to Safari and paste it.