Looks like Google is developing a pair of real heads-up glasses that can take pictures of everything, everywhere.
They are in late prototype stages of wearable glasses that look similar to thick-rimmed glasses that “normal people” wear. However, these provide a display with a heads up computer interface. There are a few buttons on the arms of the glasses, but otherwise, they could be mistaken for normal glasses. Additionally, we are not sure of the technology being employed here, but it is likely a transparent LCD or AMOLED display such as the one demonstrated below: