Apple released a developer preview of their new operating system, Mountain Lion. OS X 10.8 Mountain Lion will be available in summer 2012.
what’s new in Mountain Lion?
New Messages app which replaces iChat.
Messages will continue to support AIM, Jabber, Yahoo Messenger, and Google Talk.
AirPlay Mirroring -stream what’s on your Mac to your HDTV via Apple TV.
Share Sheets -share and tweet links, photos, and videos from any app that supports them.
Gatekeeper -prevent you from unknowingly downloading and installing malicious software.
Notification Center –
Visit OS X 10.8 Mountain Lion homepage