In 2007 more versions of Desktop Linux came into the picture. PCLinuxOS, Ubuntu, etc.
I have been retired now for about 3 1/2 years and the main use of Linux was still mainly on all our servers.
Mac OS falls into the Linux category.
I run mainly Linux in a dual boot mode along with Windows XP.
Linux works well on older computers depending on the desktop used. I use the
Gnome version and have much of the eye candy disabled along with unnecessary services.
If you have an older computer around collecting dust, a fast distribution of Linux is Geubuntu.
Link To Geubuntu
Seems that Vista is taking in on the chin in the business world. Where I worked they just replaced several computers and ordered them with XP.
Seems that Vista will end up kind of like Windows ME at least in the short term? Who knows?
I Run
Linux Mint Daryna 4.0 (based on Ubuntu) and have ran PCLinuxOS, etc.
Link To Linux Mint
Dell, Wal-Mart, and others are now selling Linux based computers.
Looks like at least for now that Ubuntu Linux for desktops is the most popular distribution and can be found in many languages.
For those considering Ubuntu Linux, I recommend that you purchase a book called "The Official Ubuntu Book" at your local book store. There are a few other books too that are helpful. One being "Ubuntu Hacks".
One always hears that one must be a "Geek" to run Linux, but I don't find that to be an issue with the latest distributions.
Mystic is 100% correct that in a few years who know what will come along as far as an operating system.