Buzz is a new social sharing service from Google, built in Gmail. It is very hot, released two days ago, but it even has a basic feed API, unfortunately it doesn't support RSS, so you can't just plug it to your Facebook wall page, for example.
I created a very simple converter for Google Buzz, that generates a vaild RSS feed from your Buzz feed.
Check out the source code here.
Please note that you will need a PHP setting: allow_url_fopen enabled.