Let's face it: right now, the head nods and other rudimentary controls of Google's Project Glass are mostly useful for looking good, sharing photos and not much else. A US patent application submitted last September and just now published, however, raises the possibility of more sophisticated control coming from your hands. A ring, a bracelet or a even a fake fingernail with an infrared-reflective layer would serve as a gesture control marker for a receiver on heads-up display glasses. Having this extra control would give the glasses-mounted computing room to grow by learning gestures, and it could even depend on multiple ornaments for more sophisticated commands -- at least, if you don't mind looking like a very nerdy Liberace. We can imagine the headaches a hand-based method might cause for very enthusiastic talkers, among other possible hiccups, so don't be surprised if Project Glass goes without any kind of ring input. That said, we suspect that Sauron would approve.