Apple Press Release: Apple Releases OS X Mountain Lion Developer Preview with Over 100 New Features

Just like Mac OS X Snow Leopard that follows Mac OS X Leopard. OS X Mountain Lion is the “Toc” to OS X Lion’s “Tic”.

OS X Mountain Lion integrates more iOS features such as:

• Messages. It replaces but keeps iChat features. Messages Beta is available for download.
• Reminders
• Notes
• Notification Center
• Game Center
• Air Sharing
• Twitter Integration

OS X Mountain Lion Developer Preview is available for download to registered Apple Developer. The program costs $99 per year.