Apple® today released a developer preview of OS X® Mountain Lion, the
ninth major release of the world's most advanced operating system, which
brings popular apps and features from iPad® to the Mac® and accelerates
the pace of OS X innovation. Mountain Lion introduces Messages, Notes,
Reminders and Game Center to the Mac, as well as Notification Center,
Share Sheets, Twitter integration and AirPlay® Mirroring. Mountain Lion
is the first OS X release built with iCloud® in mind for easy setup and
integration with apps. The developer preview of Mountain Lion also
introduces Gatekeeper, a revolutionary security feature that helps keep
you safe from malicious software by giving you complete control over
what apps are installed on your Mac. The preview release of Mountain
Lion is available to Mac Developer Program members starting today. Mac
users will be able to upgrade to Mountain Lion from the Mac App Store™
in late summer 2012.
"The Mac is on a roll, growing faster than the PC for 23 straight
quarters, and with Mountain Lion things get even better," said Philip
Schiller, Apple's senior vice president of Worldwide Marketing. "The
developer preview of Mountain Lion comes just seven months after the
incredibly successful release of Lion and sets a rapid pace of
development for the world's most advanced personal computer operating
The developer preview of Mountain Lion features the all new Messages app
which replaces iChat® and allows you to send unlimited messages,
high-quality photos and videos directly from your Mac to another Mac or
iOS device. Messages will continue to support AIM, Jabber, Yahoo!
Messenger and Google Talk. Starting today Lion users can download a beta
of Messages from www.apple.com,
and the final version will be available with Mountain Lion. Reminders
and Notes help you create and track your to-dos across all your devices.
Game Center lets you personalize your Mac gaming experience, find new
games and challenge friends to play live multiplayer games, whether
they're on a Mac, iPhone®, iPad or iPod touch®.
Mountain Lion presents notifications in an elegant new way, and
Notification Center provides easy access to alerts from Mail, Calendar,
Messages, Reminders, system updates and third party apps. System-wide
Share Sheets make it easy to share links, photos and videos directly
from Apple and third party apps. Twitter is integrated throughout
Mountain Lion so you can sign on once and tweet directly from Safari®,
Quick Look, Photo Booth®, Preview and third party apps.