Huh, what's KDE.
The select a distrobution page says, in the Fedora section:
although it is also possible to use KDE like Kubuntu
Huh, what's KDE. I know I know what it is, but to someone who does not know Linux, it might not be obvious that KDE is the thing that makes Kubuntu look different (it could be something else found in Kubuntu, but not Ubuntu). I would suggest adding a note to the Ubuntu section, so that it reads:
Ubuntu also has a sister distribution, Kubuntu, with a different layout and slightly more advanced graphics. (The difference in graphics is due to a different window manager called KDE)
"Window manager" or "KDE" could link to a FAQ entry explaining how you can use different window managers on Linux, and what they are.
What do you think? I think there definitely needs to be some explanation as t owhat KDE is.