Agreed. While I really want Google+ to succeed, this means absolutely nothing. Google could come out with something silly, say an Interactive Sandwich Maker (where did that come from??), and it would probably get 10 million users within a few weeks.
Also, in reference to the quickie TC chart, those of number of users who opted-in to a feature their provider activated. In other words, it's a voluntary rollout versus their previous social offerings.
http://gmailblog.blogspot.com/2010/02/millions-of-buzz-users...