Hey, I'm an OS X vet, and yet I don't know the answer to this question: can icons on the desktop be hidden from view? Pretty sure Windows has a way to do this. If anyone knows, tell all. Thanks.
alternatively if you want to hide it from plain view - e.g. more than just hiding the icon but the file itself just use
mv filename .filename
though I'm not certain this is what you're looking for
(You can add a Quit Finder item to your menu using something like Tinkertool or typing "defaults write com.apple.finder QuitMenuItem -bool yes" in Terminal.)