Non-system Wide Hidden Folders

One thing that's always bothered me is how you can only have all hidden files and folders displayed or not. You can't select to display them per-folder, per-file type, per-date modified, etc., so hidden files are a good idea, but pretty limiting.

Does anyone know of any programs that extend hidden files? I think I saw a post around the forums here, but I can't find it.

Maybe, um, Stardock can develop a program to do this?