Based on feedback from users like you, we ve made scores of improvements that make VMware Fusion faster, more reliable and even easier to use. VMware Fusion Beta 4 includes:
New "Unity" feature: Say goodbye to the Windows desktop - VMware Fusion now lets you run Windows XP applications directly on your Mac desktop, providing full integration with Mac keyboard shortcuts and the Exposé feature in Mac OS X. Use the VMware Fusion Launch Palette to easily access all your Windows applications, and save your favorite Windows applications to the Mac OS X Dock.
Improved Boot Camp integration: Already using Apple Boot Camp? VMware Fusion lets you access your existing Boot Camp partition, giving you the flexibility of running Windows natively or as a virtual machine. Beta 4 adds experimental support for Microsoft Vista and offers improved detection of Boot Camp partitions. In addition, VMware Fusion now automatically updates Windows to use optimized drivers when run as a virtual machine.
Improved performance: Virtual machines now boot faster, and applications now launch more quickly from virtual disks. Interactive performance has also been improved.
Improved User Experience: The toolbar is now completely customizable to meet your needs, virtual hardware has been moved to the status bar and the virtual machine hardware editor is now a sheet attached to the virtual machine.
官网：http://www.vmware.com/products/beta/fusion/
官方下载：(Serial Number: 00P0P-0242H-02H0M-4852M | 168 MB)
http://download3.vmware.com/software/fusion/VMware-Fusion-e.x.p-48339.dmg
或者
http://register.vmware.com/content/beta/fusion/registration.html
