Since probably Windows 95 or even earlier (I’m not that old) Desktop did not change. There was Windows 98 and it’s active content, Linux with its 4 desktops and more recently Compiz, but they all were just variations around basic idea: 2D space where you put some icons, some background and that would be the end of it.
Until… I saw this:
And then I installed this. It seems to be some variation of the same idea (much limited compared to what is presented on this YouTube video) but it has one simple advantage: it’s available right now. And it’s fun.
I installed the free version, that seems to have almost all options grayed out, but it’s fun. I only miss ability to pile stuff up, and fish-eye browse (or I just didn’t discover it yet). Anyway, go check it out.