It looks like the NFC Ring is about to hit the streets. I'm thinking that it'll be a project for later this year. My idea is to have a shallow container (bowl?) where I toss my jewelry when I arrive home (I hate wearing rings while typing). By combining a Raspberry Pi, a NFC sensor, and a NFC Ring, I'd like the action of tossing the ring in the bowl to turn on the lights in the office and send a WOL packet to my computer. Inversely, removing the ring from the container should do the same in reverse (turn everything off).