Apple’s next major desktop operating system update called ‘Mountain Lion (OS X 10.8)" will be made available via the Mac App Store today for $20.
Mountain Lion focuses on incorporating features from iOS to the Mac; some of these include the Notification Center, expanded iCloud support, Reminders, and much more, but if you want to read about exactly what has been incorporated into Mountain Lion, Apple had previously posted a 200+ feature list – so it’s worth a read if you’re planning on updating today.
To be able to install the update you will need to be running either Mac OS X Lion or the most recent version of Snow Leopard (10.6.8).
Update: OS X Mountain Lion is now in the App store, go get it! You can also check if you"re eligible for a free upgrade here.
You can also join in or read the Mountain Lion discussion in our forums, or any other Mac related topics here.
Source: Apple