FOR EXPERIENCED users only, the DingleBerry tool for rooting your BlackBerry PlayBook is now available for download (Windows version available now; Mac download coming soon). If you want to take the plunge, download it from DingleBerry.it and follow the instructions step by step. We'll be following up with more on DingleBerry here on the blogs, and be sure to hit up our PlayBook rooting/jailbreak forums for more.
Download DingleBerry for Windows
PlayBook Rooting Help & Discussion in CrackBerry Forums