> Honest question: As an app builder, why would you use this instead of facebook? You should use both, to maximize the convenience of your users. Some are alw

> Honest question: As an app builder, why would you use this instead of facebook? You should use both, to maximize the convenience of your users. Some are always signed into Facebook, and like to just use that, others want other methods that offer different models of security and openness, Persona is the best of those I would argue (OpenID is nice too, but the lack of native browser integration is what makes it less impressive than Persona).