Blogger as an OpenID provider

One of the frustrating things is to have to create multiple ids for commenting on different blogs. It is bad enough that we have different email ids, bank ids, magazine subscription ids etc. I am happy to see that Blogger (Google) has finally introduced this feature. Now, I can enable my blogger id as an OpenID and use it on blogs that accept it. Just as any other feature in networks, this will only be as successful as the number of sites (and members) that embrace it. It will be interesting to see the success of this initiative against inevitable alternatives that will emerge.