With a lot of rumors and speculations RIM announced the OS update for BlackBerry PlayBook. The PlayBook users are asking for an update ever since the last update rolled few months back. They hope the new update brings quite a few interesting changes. Apparently, RIM delights us with some interesting stuff.Facebook for BlackBerry PlayBook Tablet Update and Preload BlackBerry Tablet OS v1.0.5 brings the Facebook application by default. This could be the first tablet-optimized Facebook application which allows the user to experience the exciting features like video uploading, Message deletion, Facebook Search enhancements and more. In-App Payments Support BlackBerry PlayBook users can now buy another level in a game, or a new edition of a magazine from BlackBerry App World storefront directly. The in-app payment support means dynamic possibilities for BlackBerry PlayBook applications and better apps. Now, developers can use BlackBerry Payment Service and BlackBerry Payment Service SDK, to learn more about updating and submitting their apps to include in-app payment support. BlackBerry PlayBook Charging and Battery Pop-up Video Chat Connectivity: BlackBerry OS now support the TURN (Traversal Using Relay NAT) protocol, which enhances Video Chat connections between users when their call is crossing between a public network and an enterprise network behind a firewall. BlackBerry OS v1.0.5 makes your work easier to connect to a Wi-Fi hotspot during the set up process. It detects the Wi-Fi hotspot automatically. Finally, the Headset Audio Boost will allow the user to to add an extra level of volume to help maintain an enjoyable audio experience with the headset in noisy places.