You can even use your Wordpress, AOL/AIM, TypeKey or LiveJournal logins to comment in blogger.
I would like to see more blogs turning off their restrictions by turning their OpenID-supported comments on.
Learn how to allow OpenID users to comment on your blogspot blog and how to turn your URL into an OpenID!
Test out your logins by leaving a comment to let me know whether you like or dislike the multi-faceted login system at blogger.
Happy blogging and social-whoring ;)