VMWare has released a beta version of VMWare Workstation 6.0 Beta for Windows & Linux with support for Windows Vista OS and multi monitor display.

Features for end users include:

Support for Windows Vista - Use Windows Vista as host operating system
Multiple monitor display - You can configure a VM to span multiple monitors, or multiple VMs to each display on separate monitors
Headless mode - You can run VMs in the background without the Workstation UI
New devices support - USB 2.0 and 64-bit sound driver support
Virtual Appliance view

Windows Serial Number: A8HC7-1GGR0-E4PD4-4T694
Linux Serial Number: A8033-17FKN-F5640-48QTE

Download links-
Windows version
Linux version