Fences is quite nice and pretty slick, but it needs just a bit more to go from being a novelty to a nice utility.

1. Fix the multi-monitor support.  Allow utilities like DisplayFusion, etc, to provide different desktops for each monitor.  Have the tool recognize that multiple monitors are present, and show which monitor the fences are on.
2. Allow different colors for fences
3. Allow a "default" fence where new icons will automatically go in.
4. Don't rely on the windows-D (Show Desktop) command to make fences visible.  It's always been a bit annoying -- if you make any windows visible (something you freqently do from the desktop), the second invoke of Show Desktop will no longer restore windows.
5. In fact, consider making a double-click on the desktop bring up the fences in front of other windows.  My workflow is typically "go to desktop, select something, go back to my work.  You could have an option to auto-hide after opening something, then.
6. Auto-hide fences after a certain length of time.
7. Consider a tray icon to represent fences... sometimes it feels uncomfortable adding things to the root menus.

Thanks, again!

Pat.