It's the latest Mac OS. The Mac OS X version 10.6 snow leopard is the newest Mac OS available, a great upgrade for all Mac OS users all over the world. The strong UNIX based OS comes with many new functions and features such as the time machine, Boot Camp, Quick Look, new Exposé and so many other features.
The new OS is faster, more reliable with improved graphics, booting time, better colors for digital images with the new gamma.
Contextual menus which come out of Dock icons now have more options and have a new look, with a semi-transparent charcoal background and white type.
Exposé can now display all windows for a single program by left clicking and holding its icon in the dock. Windows are arranged in a new grid pattern.
It's definitly faster. You can upgrade from Mac OS X Leopard for just $29. Or buy it from Amazon.com for only $24.99.