An interesting side note: when you are viewing the document, it lists all the other anonymous users who are also viewing the document. The list is Anonymous User 1, Anonymous User 2, etc. However, the list also included a two Usuario anónimos: Usuario anónimo 1, Usuario anónimo 2. This is an odd information leak... it gives away an anonymous user's language settings.
It assumes everyone that has user accounts wants people's 'Internet Identity', by which they apparently mean an email address. instead of something local. An account system that does not revolve or include an email address is entirely a foreign concept to them.
Lots of random rambling about the evils of passwords.
Completely irrelevant aside about spam.
Back on topic and talking about OAuth as the first solution. We're not even going to mention OpenID even though we link to their site when talking about implementing OAuth later.
AccountChooser.com as a service. Apparently, A/B testing is an important consideration when designing an identity system.
I gave up reading around that point. If you want to promote some new sort of identification system make an RFC or at least write in the style of one.
