The interface is more integrated on this version. There are also new security abilities to block future malware before they enter the system. Game Center plus the Apple TV box turns the Mac into a gaming console.
Mountain Lion boasts an air-tight synching ability that comes integration with iCloud and your favorite iOS devices through shared notes, documents and reminders.
Notification Preferences : The new System Preferences pane allows you control which apps send notifications your desktop and the new Notification Center panel. If you want to move an app from "In Notification Center" to "Not in Notification Center," all you have to do is simply drag it to the lower panel.
The Mail, Contacts & Calendar preference panel now accommodates Flickr, twitter and more of your favorites.
Mountain Lion is already the best consumer OS thus far. It's crazy-sexy-cool and once you try it you will want nothing less. Apple announced today that you can look for Mountain Lion to ship sometime this summer.