BlackBerry PlayBook OS 2.1 beta due soon?

PlayBook product manager Michael Clewley has tweeted that users can soon expect to get hold of (beta) version 2.1 of its operating system at the "end of May." Given that it's the 30th now, the company has less than two days to ensure Mr. Clewley doesn't break his promise -- after all, tweets are as good as legally binding contracts. It'll arrive on your slate the same way that version 2.0 did; simply sign up online and it'll be pushed out as soon as its ready.