I was going to write my note this year about the privacy implications of Google Glass but pretty much every jurisdiction has gotten rid of the statutes that bar "discreet recording" of others in public places. Illinois' was still in effect as recently as last spring.

Really just wanted an opportunity to research Google Glass (which, in five years may be as common as cell phones were 10-15 years ago imo) and maybe get a free pair for my efforts. In my preliminary research, they were projecting that they will hit the shelves for the public as soon as the end of the year.
FWIW, I bet they'll be banned for drivers in most places, like cell phones are.