FolderEnhancer is a great $2.95 app I've discovered for jb older phones like 3G/3GS - it not only offers the ability to add loads more items to a folder (and make subfolders), but it also does stuff like turn off animation so the folders pop open immediately (which is otherwise really slow on old phones in 4.2.x), auto close folder on launch of app, folder wallpaper (should you so desire) etc. It's the fast opening of folders (and the auto-close option) that I really appreciate.
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If it's brokenless, don't suffix it...