Headline here is completely wrong: the article stresses they'll keep it in GMail, they're just going to offer it to non-gmail accounts. This'll be GApps and is unsurprising, to me.
http://mashablemirror.blogspot.com/2010/02/google-buzz-is-st...
However, they contacted Google to confirm and were told: "No, we’re not planning to remove Buzz from Gmail. Among some of the features we’re considering is building a standalone Buzz experience in addition to the one in Gmail, but I can’t confirm anything right now."
The lack of consistency suggests that Google is having a hard time deciding how to handle this but knew they had to address it quickly. I hope they back down and fix the privacy issues, but I'm not sure they would think Buzz will be worth their bother unless they can convince people to give up the expectation of privacy. Meanwhile, I've voted with my mouse by following these instructions: