A useless but interesting hint...
There is a hidden desktop in Codetek Virtual Desktop. You can access it by clicking on the rightmost desktop of the pager and dragging to the right. Release the mouse button when the pointer exits the pager. The current desktop will then change to the one named "Easter Egg".
As far as I know, you can't move existing windows to that desktop, but you can create new windows in it.
[robg adds: This Easter egg is also present in the demo version of the program...]
Mac OS X Hints
http://hints.macworld.com/article.php?story=20030924142246669