Twitter account that the beta of 2.1 will hit before the end of May, which means in the next 2 days!
The rollout of the 2.1 beta will go exactly as the 2.0 beta where you
sign up to get it and its pushed to your Playbook. Michael also
confirms that no features that will be on the official OS 2.1 will be
removed, blocked or held back, as they were on the 2.0 beta (no PIM)