Researchers who last week said they had succeeded in jailbreaking the RIM PlayBook tablet have now posted a detailed walkthrough of how users can accomplish the same task on their own. The technique requires the use of a custom tool, but otherwise is fairly straightforward. In order to begin the process, a PlayBook user need to first install the beta 2.0 version of the PlayBook software and then install the Dingleberry tool. In a statement on Dec. 1, officials at Research In Motion said that they were aware of the situation and were in contact with one of the researchers regarding the technique.
Source: https://threatpost.com/playbook-jailbreak-tool-released-120611/75960/