Earlier quoted context omitted.
I think that was Microsoft Passport. More recently, it's Mozilla Persona. The problem has always been a lack of incentives for websites to implement them, coupled with user indifference.
[Edit]: added comment on Mozilla Persona. I would disagree. It's common knowledge (backed by many A/B tests) that shorter sign-up forms see less traffic drop. So, if OAuth can replace a number of things (name, email, password, email verification, and so on) by a couple of clicks, I as a website owner will be very happy. Also, when sending interesting emails to inactive users, I see quite a few come back but drop agai…
Well, there's this:
https://groups.google.com/forum/#!topic/mozilla.dev.identity...