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Vorbis ended up being very successful in some niches - audio for games springs to mind.

Persona might find its own niche, even if it never completely displaces Facebook user authentication on the web.

Absolutely. Ogg Vorbis could have crushed the big licensed formats, though, if the Xiph Foundation had had any clue about telling a good story.

I love Persona and I love Ogg Vorbis, but both fail(ed) at understanding what _normal_ people look for in authentication/audio compression formats.