That's kinda a difficult question.. which desktop?
I'm running RHEL4 for dev stuff/work stuff, but I am tied to a Windows XP VM to run the internal Windows only apps which won't run in Linux/Wine, and I usually need VNC viewers to 2ish machines open to monitor status.. so I don't really see my desktop. I'm not really sure which desktop I would even look for, since I have three taskbars, usually. I hadn't seen my Windows one in a while, so I minimzed FF and you can kinda see it in the corner. I usually have Outlook up full screen on that VM anyway, so I don't generally *see* a desktop.. it's just a lot of alt-tabbing and switching between machines..
At any rate, Windows has an Astronomy Picture of the Day of a full solar eclipse where the sun is visible and (oddly) purple around the edges.
Had to redact a few things to protect the innocent..
-----Added 11/9/2008 at 07 : 06 : 20-----
After I posted I was actually curious what my main machine's desktop was when I closed everything down, so I did and turns out.. it's just a plain black one. But if switch to desktop 2 and close everything, I have this:
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