Apple releases major OS X Mountain Lion 10.8.2 update

Alongside the release of iOS 6, Apple  has just released OS X Mountain Lion 10.8.2. As we reported previously, this is a pretty substantial update. Sure, there will be the typical bug fixes and optimizations, but you will also find the long-awaited Facebook single sign on functionality, bringing sharing to (and notifications from) the social network built right in to OS X. The update also brings the Power Nap feature to Late 2010 MacBook Air notebooks, phone number support to Messages, shared Reminders lists, the ability to add cards to iOS Passbook from your Mac, and plenty more. We've got the full list of 10.8.2 changes here. You can download Mountain Lion from the Mac App Store.