What would be truly awesome would be for the general population to login into their webmail account and the entire thing works just the same, they have the same "email address" but somehow as if by magic it isn't using email anymore, but the new protocol. Seriously easy and effective on-boarding.
But then why the heck would anyone use it / switch to it? Aside from the very technical crowd, which is a tiny portion of Y! users. It'd have nothing tangible to offer to new users--just invisible promises.
