PlayBook owners over on the CrackBerry forums have discovered that, after applying a new BlackBerry Bridge v188.8.131.52 update, they were able to use BBM on their BlackBerry PlayBooks. The feature reportedly only works with BlackBerry 6 devices right now, although there are rumblings that a BlackBerry OS 5 version is in the works as well. You’ll also need to update your BlackBerry Messenger application to the newest version first, and that should be available from RIM’s BlackBerry Beta Zone. Unfortunately some users are reporting that the new Bridge update is causing some lag on their phones, though, so you may want to hold off until RIM issues a release build of the software. Judging from the picture above, we’re definitely digging the multi-frame layout with the BBM buddy list on the left side and conversation view on the right.