Today Philip Langdale of VMware announced the free VMware Player. Cool!
On Ubuntu Breezy, the configuration from the tarball goes fairly smoothly, until:
Your kernel was built with "gcc" version "3.4.5", while you are trying to use
"/usr/bin/gcc" version "4.0.2". This configuration is not supported and VMware
Virtual Machine Player cannot work in such configuration. Please either
recompile your kernel with "/usr/bin/gcc" version "4.0.2", or restart
/usr/local/bin/vmware-config.pl with CC environment variable pointing to the
"gcc" version "3.4.5".
Luckily the vmware-config.pl script respects the CC environment variable (although debian does not), so this can be fixed with:
$ export CC=gcc-3.4
Then it continues to ask a lot more questions I wasn’t exactly sure the answer to so I mostly went with the defaults (I’m not the only one!).
A few minutes later, and we have Ubuntu in Ubuntu!

Substantially harder to use and arguably no better than VMWare. But it’s Open Source, so that makes it superior, right?
No, really, it’s pretty.
—-Chip
Cool. I am thinking about picking up VMWare Workstation to create a VM of Windows. It doesn’t look like Xen supports Windows, and when it will, will require new hardware?