I don't believe this will be possible but I figured I'd ask. At one time someone found a way to create a truly black icon by using a web site link. You would simply point your browser to this site and save the link to your desktop. You could do this as often as you wished, creating as many "blank" icons as you wished. This allowed you to "arrange" icons on each page in what ever configuration you wanted. Now that you can set a background image having a "clear" link icon would be useful but I just don't see how it's possible. And no, I don't want to jailbreak to get this feature. I can deal with it if it's not possible.