In 2006 I built an EyeTap which is essentially Google Glass but with 2006 level technology. After the Google I/O 2012 keynote it was clear I needed to wear it to the second day of the conference so I rewrote the software stack in about 24 hours on OpenCV (not an option in 2006). It now does facial detection and records every face I see… more on that later. A video composed of samples of what I saw in the display: