Has anyone seen gmail's new "buzz" feature? It looks very similar to twitter, of even facebook - but inside the email client.

I guess it's some sort of social media thing, and they're trying to catch up to Facebook or perhaps Twitter

I don't know about you, but this is rather annoying. I don't want to be socializing with everyone in my address book, every time I read or type an email. Who use it, in any case?