Mid April Google made the Google+ Comment System available on Blogger.
Of course it did not take long till it got hacked and made available for Wordpress blogs. The code is rather straightforward and easy to put on your site even without plugins.So far I have noticed plugins for Wordpress and Joomla.
I will play with it shortly in my sandbox. Google has not yet added the details to their tech docu. That’s why it is still a hack.
Just wanted to let you know.
Oh, here is more about it.