Google's catchup to facebook connect is in action still, with updates/releases to the API made yesterday to allow better integration with other services.

In particular I was interested in using it with Drupal, and found this post: http://code.google.com/p/google-friend-connect-plugins/wiki/DrupalPlugin which was just updated on the 12th, so should be a very good introduction, and there is a drupal module already, which is great.

I'll try it out later and write another blog post.