About Persona versus site-specific passwords, here's a relevant blog post from one of the Persona developers: http://dancallahan.info/journal/password-managers-

About Persona versus site-specific passwords, here's a relevant blog post from one of the Persona developers: http://dancallahan.info/journal/password-managers-not-enough/ http://dancallahan.info/journal/password-managers-not-enough... About Firefox OS, I was talking about the ubiquity of smartphones and similar mobile devices on a global scale, not just the existence of modern mobile operating systems. I don't think the former has peaked yet, and the Firefox OS team is hoping to make an impact in the developing world in particular. Regarding HTML5+JS versus native, in Firefox OS, HTML5+JS is native as far as applications are concerned, and Mozilla is providing and trying to standardize APIs for all of the "special functionality" that developers can only use through proprietary APIs on the other platforms.