Re: "nothing illegal to be wearing Google Glass"... yet.
So five downvotes to my post pointing out that a cyclist or motorcyclist doesn't have to put a foot down, but nobody has come up with anything to contradict that, apart from Steve Knox who asserts that "balancing a bicycle without rolling forward or backward is practically impossible" leading me to the conclusion that he doesn't ride a bicycle or motorcycle like myself and has never seen someone do (or done) exactly this.
To quote a document from the Insitute of Advanced Motorists:
"26. Misconception: At STOP lines the rider must place at least one foot onto
the road surface.
"There is no specific requirement for the rider to do so. The essential requirement is that a rider’s machine must come to a complete STOP."
I recommend that the downvoters take some Advanced Training (or they can just downvote me again to be petty...)