[PROPOSAL] Handle "http://user at example.com" Style Identifiers

[Jonathan Daugherty]

# I'm not actually proposing the IdP make an assertion about
# user at example.com.  It would only be used during the discovery phase
# and then an assertion for a URL be returned.

Ok, I misunderstood.  But even in the case where the IdP makes an
assertion about a different identifier, that's confusing, too; you
enter something that looks like an email (and maybe your provider
tells you it even is), but you log into the site as something else,
right?

-- 
  Jonathan Daugherty
  JanRain, Inc.