"As expected, VMware Inc. announced on February 6th that it was releasing a no-cost version of its VMware Server line.
"While not open-source, this entry-level virtualization server enables users to partition x86 and x86-64 Linux and Windows servers into multiple virtual machines (VMs). Server administrators can either roll their own servers or use such pre-built servers as IBM WSE (Workplace Services Express), MySQL, or Oracle 10G..."