@shama I got a 404 from my Mac and then the links you mentioned from my device, sorry for the false report, but you're right--should probably include a guide.

@johnyma22 I guess I just imagined when I originally backed the Kickstarter that I'd use mine in such a way where I'd pick up my phone up and it'd just unlock, basically that my phone could only be unlocked in my hand and it'd be fluid and natural. I have to tap it on the lens to unlock, which isn't really a natural movement. It's slightly disappointing, but it's because of my own unrealistic expectations. I may have been a bit harsh saying that I didn't recommend it for HTC One M8 owners--maybe it's a recommend with a caveat that you have to poke the camera, which I personally don't like because I was hoping for a pick-up-and-go experience.

Hey, folks:

Just wanted to report my experience with the HTC One M8 and the Stealth (all black) version of the NFC ring.

I'd say this is a don't buy if you're intending to use it to interact with your phone. The NFC chip is located behind and around the camera on the new HTC (http://www.htc.com/www/support/howtoimage.aspx?id=837013), but due to the ring's narrow broadcast area (or whatever the technical term is), the only time the phone can read either the private or public strips is when you tap it against the lens directly. I'm convinced this would scratch your lens with repeated use.

I'll try to explore other functions for the ring, but unlocking my phone (my original intention) is a bust.

P.S. My ring reads nfcring.com/getStarted, which returns a 404--sure someone else has mentioned it, but might be worth sticking up a redirect to the actual getting started guide, which I'm having a hard time finding for some reason.