It is amazing how it is easy to build your own Linux distribution, look at:

http://www.gnewsense.org/Builder/HowToCreateYourOwnGNULinuxDistribution
http://www.rocklinux.org/wiki/Main_Page

You can also easily build you own Live CD from any working Linux installation, look at:
http://www.linux-live.org/

It is a matter of more several years and Linux will be the public operating system for everyone.