The last 48 hours have been incredibly busy - as we had previously promised, we launched the Yahoo! OpenID Provider service (official blog post) on January 30. Actually, we had quietly launched it one day earlier. ;-)
Mashable has early comments on our implementation
Johannes thinks that this is Day 1 of OpenID being viable for business
Kim Cameron congratulates us
For me, this has been an incredible journey, starting with my first Internet Identity Workshop, to understanding the OpenID 1.1 spec, to thinking through the business case for the project, to working with the community to help fix the security issues my buddy Allen Tom had found in the OpenID 2.0 draft spec, to seeing OpenID 2.0 get finalized, to helping finalize the OpenID Intellectual Property Policy, to watching our product grow over the past few months - and countless other fun things (though they may not have seemed fun at the time) that came up along the way.
In addition to the folks we mentioned in our official blog post, many other people have helped make this happen - so I'd like thank everyone that has provided input, given direction, rallied support, or has been plain excited about what we have been working on. You know who you are!
Time to get some sleep now - 12:21 am.