[blvr]

Being a Windows mockup doesn't mean Gnome or KDE can't take inspiration from it. :)

Actually when this was first made (a few months ago) it was just an experiment to see how Metro styles and concepts could be applied to the desktop. Back then the Win8 builds were still all using Aero and there was no hint of a new style, so in retrospect it got quite a few things right.

[dysoco]

I saw a KDE5 mockup some months ago (Back in January I think). It looks like this mockup, look: http://kde-look.org/CONTENT/content-pre1/148657-1.png

Looks very "metro" to me.