It's kind of nice when the RIM heads give us a heads up on what's coming out. Last night, RIM PlayBook Product Manager and all around nice guy, Michael Clewley, sent out the above tweets in response to a question about the 2.1 beta OS for the PlayBook. Stating that the beta would be released at the end of May gives a pretty good idea it'll be out this week because the last day of May is Thursday.
The beta will be conducted the same way that the original 2.0 beta was done. We're sure devs are anxious to get their hands on the new beta and they will be able to do so very, very soon!