It looks like an up-to-date Linux with KDE 3.5 so the comments about it being a 10-year-old Windows knock-off are amusing, but surely this is just South Korean propaganda that's being mindlessly repeated?
It does say a lot when non-techies view fairly recent linux desktops as "10 year old" software. I guess if they used kde4, the article might be calling it a Vista knockoff.
Actually, I think if you squint KDE 3.5 looks most like Windows XP which, while still wildly popular, is in fact 10-year-old software.
Still seems like propaganda to me though just the clever kind where you say something factually true in a way that most people misinterpret to your benefit.
One other thing I found out while reading about this is that this is a new venture for NK and in fact most computer users (though apparently there aren't that many) are in fact using Windows XP.