Cameras built into electronics have become so cheap that they are being dedicated to specific functions (things like a front skype/facetime camera and a back "t

Cameras built into electronics have become so cheap that they are being dedicated to specific functions (things like a front skype/facetime camera and a back "take pictures of things" camera on an IOS device). It does feel like the head mounted camera in Glass is hardware that hasn't found its killer app yet. Yet it is easy to imagine lots of possibilities (auto face recognition so you never forget a name, photo search with commands like: "Identify this leaf" and it takes a picture and tells you the plant name, the input side of a WordLens style app, etc), which I think is exactly why it is early adopters and developers that have them now.