900,000 Android devices are activated every day and the news came from Andy Rubin Twitter account. Andy Rubin is the Vice President of Mobile at Google. He has answered the rumors about him leaving Google.
In February 2012 Andy Rubin Tweeted that the 850k Android devices are being activated daily. In another few months, it is possible that more than 1 million devices are being activated daily.
Andy Rubin is not too much active on Twitter still the very less number of his Tweets are extremely valuable.