Apple said it sold more than two million copies of the latest version of its operating system, Mac OS X Leopard, since its release on Friday. Leopard introduces new features to Apple PCs, including automatic backup, a quick way to browse and share files over multiple Macs, and a new way to see files without opening an application, the company said in a statement.

In related news, the OSx86 Scene forum has released details of how Windows users can migrate to Apple's new OS, without investing in new hardware.

Not all the features of Leopard function with the patch -- Wi-Fi, support, for example, is reportedly inoperable.