I love Display Fusion. This has replaced a tool I've used before called Crawlpaper that's not developed anymore. Along with that I've got a laptop that I drop into a docking station that has two LCDs. Needless to say this really mucks with all sorts of configurations I have in Windows such as files on my desktop, wallpaper etc.
As such I have two feature requests (begs and pleads):
1) Handle docking and undocking cleanly with Display Fusion. ie. If I undock just change my settings to a "single screen" mode and if I re-dock, reset my wallpaper settings to handle my two screen mode. Right now Display Fusion gets confused when I redock and replicates whatever is on the first screen onto the second, where I normally will have two wallpapers loaded so I can tell the screens apart easier. If I go into Display Fusion and say I have two screens it happily resets to my settings the last time I was docked.
2) Have an option to update wallpapers randomly from a folder on my desktop/fileshare location. That is the reason I had crawlpaper. It would autochange my wallpaper every 2 hours which was a nice change of pace and all I'd do would be drop new images into the folder and they would get loaded eventually.
I'll buy ya a beer if your ever in Wisconsin.

(Is that a good bribe or what would do it for you?)