This is the software publisher's description.

From the virtualization industry leader comes VMware Fusion. Simply the best way to run Windows, Linux, or Solaris at the same time as Mac OS X - without rebooting.

Built from the ground up for the Mac, VMware Fusion leverages nearly a decade of virtualization expertise to harness the full power of your Mac hardware, while still supporting Windows-only applications, USB 2.0 devices, 64-bit, and accelerated 3D graphics.

Say goodbye to the Windows desktop - seamlessly run Windows XP applications just like Mac applications; use Exposé to switch between any application, minimize to the Dock, bring forward only the application you care about, and use familiar Mac keyboard shortcuts. Use the VMware Fusion Launch Palette to easily access all your Windows applications, and keep your favourite Windows applications in the Dock.

VMware Fusion 1.1 contains a number of new features including experimental support for DirectX 9 and support for the iPhone under Windows. The Unity support has been enhanced and much more.

Sadly VMware have changed the way you have to download their software, so you need to be a registered VMware user to obtain access. This download points to the form where you can register or login to download.