Code found in the Google Glass companion app seems to indicate that Google will be allowing Glass users to take pictures by simply winking. Of course, with this comes numerous different issues. For instance, it'd be nearly impossible for people to tell that someone was taking a picture, which is already a problem with the advent of cell phones.
The problem of unwanted photographs in already such a problem in South Korea that cell phone manufacturers are required to program cameras to make a shutter sound that can't be disabled by users. At the same time, hands free functionality such as this would be beautiful for taking pictures while doing things with your hands.
What are your thoughts on the possibility of taking pictures by winking? Should Google be required to have Glass make a shutter sound?