Research In Motion’s BlackBerry PlayBook tablet became the first BlackBerry device to be rooted this past November, granting users access to the device’s file system and allowing a level of customization that BlackBerry users have not had in the past. As RIM enters into the cat and mouse game Apple knows all too well, PlayBook owners willing to root their devices now have access to the Android Market as well as the apps contained within. CrackBerry has published a complete how-to guide that details all of the software and steps required in order to install Google’s Android Market on a PlayBook tablet. While an upcoming PlayBook software update will soon bring official Android app support to the tablet, apps will need to be repackaged and made available in BlackBerry App World in order to function in RIM’s app player. Using the guide linked below, no such tweaks are necessary from developers, and users can have Android apps running on the PlayBook immediately.