On December 2009, Google's CEO, Eric Schmidt, declared after privacy concerns: "If you have something that you don't want anyone to know, maybe you shouldn't be doing it in the first place.". And on February 2010, he made some of our email contacts public.
But I'm not worried, because I know that the bigger you are, the harder you fall.
I'm not convinced that Buzz isn't just a flash in the pan. The data generated in Buzz seems qualitatively different than the data Google earns its revenues indexing and I don't really see a direct path to how that's going to change.
I don't neither. My guess is that in a few months (decades in Internet time) we will know more. Twitter started out differently also and it eventually morphed into something else.
I think the genius of Google isn't the stuff they build
(which is really cool) but the fact that the entire company
is built from information essentially available to everyone.