A user-friendly port of
Linux that runs like a standard
Windows app and uses the
FAT filesystem. Users sacrifice speed and functionality, basically, for ease of use and for not having to commit themselves even in a small way by making a new partition. If people just like the look of
KDE, which it uses, they may be better off running KDE-cygwin. It could be a good way to try Linux, though no one would use it as their main desktop OS.
http://www.winlinux.net/