Apple has unveiled its new Mac OS X Snow Leopard, an operating system which the company claims to be the foundation for future Mac.

The company said that every Mac includes features and technologies for users with special needs and Snow Leopard adds new features that make the Mac experience accessible to those with vision impairment.

The Snow Leopard includes a new QuickTime X, with a redesigned player that allows users to view, record, trim and share video to YouTube, MobileMe or iTunes.

According to the company, Snow Leopard is designed to build support for Microsoft Exchange Server 2007 into Mac OS X Mail, Address Book and iCal, so that users can use these applications to send and receive email, create and respond to meeting invitations and search and manage the contacts with global address lists.

Bertrand Serlet, senior vice president of software engineering at Apple, said: “We’ve built on the success of Leopard and created a better experience for our users from installation to shutdown. Apple engineers have made improvements so with Snow Leopard your system is going to feel faster, more responsive and even more reliable than before.”

Snow Leopard is reportedly half the size of its previous version and will ship as an upgrade for Mac OS X Leopard users in September 2009 for $29.