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?)
Let me address your 2 concerns:
1. This will be fixed in the next release.
2. This is planned for a future release, but I'm still working on how to implement it properly, without cluttering up the interface too much for people that don't want to use it.
If I'm ever in Wisconsin I will take you up on that. (Although, for the record, I've never been to Wisconsin and don't have any family there, so it may not be too likely)