Yahoo! (Flickr) as your OpenID provider

I’ve ranted about OpenID before and in my predictions for 2008, I even wrote that OpenID will get supported more and more.
Today, Yahoo! announced that their OpenID implementation (as a provider) has opened up as a public beta. This means that you can use your Flickr photo URL (or custom me.yahoo.com URL) to log in to a lot of places. This will most likely boost the OpenID implementations (for now you can offer your service to (theoretically) all the Yahoo!/Flickr users).
Let’s see if my OpenID prediction becomes reality. As for the measurement, I’ll use The OpenID Directory. Currently, they have listed 471 websites.
Will Google and Microsoft follow soon with OpenID?
