its only released on testers phones.... so one or two of them recorded it and leak it out... that's why nobody else has gotten it. its a controlled roll out. probably why they don't talk or don't show any kind of identifying anything so they don't get in trouble legally. Beta/Alpha testers get all kinds of access... but if you divulge to much you get banned and no more preview rights allowed.
As always, we are still in Q1... only days left before anyone can officially complain about 2.1 not being on their Eris. heh.