Apple has released, as from 16th February, a pre-release version of its latest OS to developer.
Mac OSX Mountain Lion, includes more than one hundred new applications including Twitter, which are now fully integrated to the system.
Mac OS X Mountain Lion will include many new applications, including instant messaging tools that will replaces iChat , task managers and a Game Center to manage all games (Installation, multiplayer, sharing ...etc)
Mountain Lion also includes Gatekeeper, a program designed to protect the computer from malicious software.
It should be noted that iCloud, will be at the heart of the system.