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Use your email address as an OpenID

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We're not quite there yet, but soon you'll be able to use any reasonable user identifier as an OpenID.  Most importantly, email addresses.  Dirk just wrote a great blog post explaining "Email Addresses as OpenIDs" which goes into the nitty gritty.  Basically, this all just needs a finalized XRD spec to rely on, and adoption of same (and ability to use acct: URIs) in the next rev of the OpenID specification.  The upcoming IIW will be an great opportunity to make some progress on these.

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