OS X Mountain Lion 10.8.2 looking to be a substantial update, here’s the feature list

Apple is set to release OS X Mountain Lion 10.8.2 soon, and it's shaping up to be a pretty substantial update. Sure, there will be the typical bug fixes and optimizations, but we can also expect 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 will also bring 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 list right here:

Facebook

• Single sign on for Facebook
• Facebook as an option when sharing links and photos
• Facebook friends' contact information and profile pictures in Contacts
• Facebook notifications in Notification Center

There's plenty more, so hit the jump for the rest of the updates!

Game Center

• Share scores to Facebook, Twitter, Mail, or Messages
• Facebook friends are included in Game Center friend recommendations
• Facebook Like button for games
• Challenge friends to beat your score or achievement

Other new features

• Power Nap support for MacBook Air (Late 2010)
• iMessages sent to your phone number now appear in Messages on your Mac
• From Safari and Mail on your Mac you can add passes to Passbook on your iPhone or iPod touch running iOS 6
• New shared Reminders lists
• FaceTime now receives calls sent to your phone number
• New sort options allow you to sort notes by title, the date you edited them, and when you created them
• Dictation now supports Mandarin, Cantonese, Spanish, Korean, Canadian English, Canadian French, and Italian
• The Dictionary application now includes a French definition dictionary
• Sina Weibo profile photos can now be added to Contacts

The 10.8.2 update also includes general operating system fixes that improve the stability, compatibility and security of your Mac, including the following fixes:

• An option to discard the changes in the original document when choosing Save As
• Unsent drafts are opened automatically when launching Mail
• Receive Twitter notifications for mentions and replies from anyone
• URLs are shortened when sending tweets from Notification Center
• Notifications are disabled when AirPlay Mirroring is being used
• SSL support for Google searches from the Smart Search Field in Safari
• New preference to have Safari launch with previously open webpages

If you haven't yet, you can pick up Mountain Lion from the Mac App Store.