Hey,
I have updated the desktop background survey I started last year with
some of the artwork that has appeared in the meantime.
http://www.gnome.org/~mccann/art/State%20of%20the%20Art%20-%20Wallpapers%...
Additions:
* Windows 7
* Palm Pre
* Andriod SDK
* Ubuntu (2)
* Fedora (2)
Hope you find it interesting.
Thanks,
Jon