Springtomize - Tear down the walls
Winterboard - Give your iPhone or iPod Touch a graphical overhaul!
GO Locker - GO Locker,design to GO Launcher EX is the most simple locker for Android!
Dreamboard - DreamBoard lets you take control over the homescreen of your jailbroken iPhone.
Cylinder - Sexy homescreen icon animations
Lockinfo - You can find this app in Cydia - Tweaks.