Apple has trumped its own sales record, with over two million copies of the Mac OS X Leopard operating system sold since its launch on Friday – outstripping the previous record set by Apple’s OS X Tiger, which has been pipped out of its spot as the most successful OS release in the electronics giant’s history.

Sales of Leopard, which is the sixth major release of Mac OS X and boasts more than 300 new features, included copies sold at Apple’s own retail stores, third-party retail stores stocking Apple products, the online Apple Store, under maintenance agreements and bundled with new Mac computers.

“Early indications are that Leopard will be a huge hit with customers,” said Apple CEO, Steve Jobs.

“Leopard’s innovative features are getting great reviews and making more people than ever think about switching to the Mac.”

New features on Leopard include Time Machine, “an effortless way to automatically back up everything on a Mac”, along with a redesigned Finder that lets users “quickly browse and share files between multiple Macs”, according to Apple.