The Messages application was presented as the best method to chat with friends using different IM systems or the iMessage the company launched last year.
The new Notifications Center was also presented and it works in a similar way with the Notifications Center from the iOS.
The only difference is that all the notices received appear on the side of the screen and not in the center.
In addition, the Dictation fucntion allows users to dictate a text that will be converted by the Mac.
Dictation is available anywhere in OS X Mountain Lion, in several languages around the world.