That's in addition to improved iCloud support across a number of Apple apps, as well as the ability to use a single sign-in to set up Contacts, Mail, Calendar, Messages, FaceTime, and Find My Mac. The goal of the release is to bring over many of the successful elements from iOS in order to improve upon the Mac experience-for example, 10.8 includes Mac versions of Notes, Reminders, Game Center, Notification Center, Share Sheets, OS-wide Twitter integration, and AirPlay Mirroring. It has been a seemingly short five months since Apple first went public about OS X Mountain Lion. The release weighs in at 4.05GB and costs a flat $19.99 for the upgrade, so long as your Mac is supported. Apple released OS X 10.8 to the Mac App Store on Wednesday morning, less than a day after announcing its third-quarter earnings- just as we originally predicted. Warm up your broadband connections, because Mountain Lion is now available for public consumption.