Right on schedule ? sort of ? Research In Motion announced on Tuesday that the first major update for its BlackBerry PlayBook tablet is now available for download. The highly anticipated update brings a number of much needed functionality to the PlayBook, but the most notable additions are certainly the arrival of native email, contacts and calendar functionality. BlackBerry Messenger support is still absent from the PlayBook as RIM said it would be, but BlackBerry Bridge has been updated, plenty of new social functionality has been added and video chat has been enhanced as well. We took a hands on look at PlayBook OS 2.0 during the Consumer Electronics Show this past January and we can confidently say that if you own a PlayBook, you should download the new update, which will be delivered over the air, as soon as possible.