Cooperative Linux

Cooperative Linux - "Cooperative Linux is the first working free and open source method for optimally running Linux on Microsoft Windows natively. More generally, Cooperative Linux (short-named coLinux) is a port of the Linux kernel that allows it to run cooperatively alongside another operating system on a single machine. For instance, it allows one to freely run Linux on Windows 2000/XP, without using a commercial PC virtualization software such as VMware, in a way which is much more optimal than using any general purpose PC virtualization software."

This looks very promising for those who want to use linux functionality/programs but can't escape the windows platform. I'm planning on playing with this on a test machine at some point in the near future. If anyone has any war stories with this product, let me know.