RIM's trying to close the security hole on the BlackBerry PlayBook that allows root access, but the hackers who enabled it are staying one step ahead. Yesterday, RIM acknowledged the hack in a statement and quickly released an over-the-air software update to disable root access, but the team who initially cracked the PlayBook have already updated the Dingleberry jailbreaking tool, to get around this update. Developer Chris Wade noted on Twitter that "all firmware are currently jailbreakable," so it seems RIM was only able to disable root access for less than a day. We'll see if RIM can respond with a sturdier patch in the next few days,.