Lunapark6 published an in-depth review on VMware Fusion 1.0 for MacOS X

"Roughly one year ago VMware announced that they would release a version of their popular virtualization software for the OS X platform. Since that time they have steadily released beta’s versions of Vmware Fusion and with each release seen continual improvements. Now after a year of heavy development the company has pulled back the curtains and unveiled VMware Fusion 1.0.

Although VMware are the leaders in virtualization software for Windows/Linux/BSD computing platforms, they are playing a game of catchup with Parallels for the OS X platform. I have personally used Parallels since the their early beta period and found it to be an indispensable tool for my MacBook. I did briefly try an early beta version of Vmware Fusion, but found it too unstable for daily use. With that stated I have had the opportunity to use the final product and yes it was impressive."

>> VMware Fusion 1.0 (for OS X) Review