While this screen doesn't feature anything truly groundbreaking, I thought you may appreciate it because it's SuSE Linux running on an Apple Titanium Powerbook. That's why the odd 1152x768 resoulution.
kappdock is running a slew of monitors from Dockapp Warehouse: http://www.bensinclair.com/dockapp/
One of the monitors shows the signal strength to my Airport card.
In the panel are tiles I made: http://www.resexcellence.com/linux_icebox/02-19-01.shtml
The game running is an old Mac favorite, Marathon, now open-source and called Aleph One: http://www.uni-mainz.de/~bauec002/A1Main.html
Cold Fusion is the skin on XMMS.
Linux runs great on a variety of Apple hardware and with the addition of the MacOnLinux.com emulater, I can stay booted in linux and continue to run my needed Mac apps.