You can sign up from the link in the article. I just did. Funny thing is, I had a friend invite me a month back, and it wouldn't work because Google closed the

You can sign up from the link in the article. I just did. Funny thing is, I had a friend invite me a month back, and it wouldn't work because Google closed the invite system. In that month, he and all my other friends have stopped using it, so I sign up and see nothing now. That doesn't compel me to use it...