Here is a pair of glasses that you can put on to record video on the go. The EriCam has a 5MP HD camera and Bluetooth. It is compatible with iOS and Android devices. EriCam has a range of 33 feet range. Its 2 built-in batteries provide you with up to 10 hours of talk time.
EriCam glasses help you record video when you go biking, hunting, fishing, or playing outdoors. Not a Google GLASS alternative but could prove useful for those who want a more discreet way to record video. It is available for under $100 at this time.