Sounds like this needs a resolution.
I'm a fan of having a desktop as well. I know that it's not the point of using Openbox to have a desktop, but for a lot of things having folder icons right on my desk that I can drag'n'drop icons and this can be pretty unsettling for someone new to Openbox / Crunchbang. ( As it was for myself.)
Granted, after you get used to the interface, Openbox + keyboard shorcuts = MUCH more efficient, but I think this is a big enough issue to perhaps set up an easy "add desktop" option in future crunchbang releases, to ease new users into the openbox system.
In the meantime: Please help pool our knowledge on best methods to add a desktop
Creating new wiki page:
http://crunchbanglinux.org/wiki/howto/add_desktop_icons
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e.m.fields
chapel hill, nc