SUN xVM Virtualbox

In addition to Microsoft VPC, VM-ware, there is another alternative choice. It is by Sun Microsystem.

It is free, but in my point of view, it is not as friendly as VM Workstation.
I installed Ubuntu 8.04 Hardy into my Virtual Box, everything seemed ok, except the sound system on Ubuntu is not working properly.

VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software.

Sun has just released the latest version of Virtual Box 2.2.2 on 28th April 2009. It sounds like a good day, at least for Chinese (28th ^_^).