Lockinfo - You can find this app in Cydia - Tweaks.
Springtomize - Tear down the walls
Winterboard - Give your iPhone or iPod Touch a graphical overhaul!
Dreamboard - DreamBoard lets you take control over the homescreen of your jailbroken iPhone.
BossPaper - BossPaper is a wallpapers manager for your jailbroken iPhone or iPod Touch that uses very little...
Cylinder - Sexy homescreen icon animations