This video, part of Google’s new Glass rollout page, exemplifies everything both right and wrong with the product. It allows you to capture moments in a way that is far more immediate than a regular camera ever could. But, in the year of opt-out, it’s an intrusive way to view the world. You may not mind a pervasive user interface in your eye, but I don’t see this as a product I want to use.
There’s also an etiquette question. Right now, it’s quite obvious when you’re taking a photo or video. What happens when there’s a video camera on someone’s face that may or may not be recording at a given time?