MacRumors reports that Apple has seeded developers with a new build of OS X Mountain Lion (12C50)
The release notes reveal the following features:Apple Seeds Near Final OS X 10.8.2 Developer Seed Ahead of Media Event
- 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
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