Remember that PlayBook OS update that didn’t arrive last week? Well we’ve been hearing rumors that it might arrive tomorrow. This PlayBook OS update is said to be bringing ZIP file format support (ability to access ZIP files via Bridge), pinch to zoom during video playback, airplane mode, and new language support. Sadly I still don’t see stereo Bluetooth support, Native apps, or even auto text. If the rumors hold true, we will see the PlayBook OS update and Bridge update in App World sometime tomorrow morning. Now lets wait and see if these rumors hold true, or if RIM will pull the update last minute like last week. Stay tuned!