Here is an interesting little project attempting to run Linux ON wimpdoze, and uses the example of a Japanese Knoppix running http://www.colinux.org/screenshots/knoppix.png as an example.

Now this would certainly make migration a lot easier.

See:

CoOperative Linux http://www.colinux.org/

This would definately make testing out a Knoppix/Linux install a lot more friendly for those still on the border. Migration into wimpdoze only offices etc.. It has potential uses, and Knoppix supporting this type of install to HD from the CD/DVD could help in getting people to migrate.

Use the best of both worlds till your comfortable with the new Linux, then you can do a wipe and install of Linux.