Fences - Keep your desktop organized with Fences. This is a simple software program that allows you to sort the tabs on your desktop and create files that are easily recognizable to you.
Cylinder - Sexy homescreen icon animations
TAGO Fences - TAGO Fences is a simple, lightweight, and handy application that is specially designed to help users organize their desktop icons in several areas known as Fences.
Winterboard - Give your iPhone or iPod Touch a graphical overhaul!
iCollections - Organize your Mac desktop items.
Lockinfo - You can find this app in Cydia - Tweaks.