As somebody who is basically face-blind, I've been wanting a face-recognizing, Facebook-enabled implant (or heads-up display, or whatever) for years. It'd be pa

As somebody who is basically face-blind, I've been wanting a face-recognizing, Facebook-enabled implant (or heads-up display, or whatever) for years. It'd be particularly handy at conferences. I mainly just want it to tell me whether I've met somebody or not, and, if I have, where and when the meeting took place and what the other person had been wearing at the time ("blue shirt", etc.). That's usually enough to jog my memory. Really, the only major thing keeping this from being at least mostly feasible today is the lack of a good way to do the user interface. Glasses-mounted HUDs don't seem to be production-ready yet. I guess if I were one of those people that always wore a Bluetooth earpiece, I could just route it through that, but I want something a little (ok, a lot) more subtle.