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.
Lockinfo - You can find this app in Cydia - Tweaks.
BossPaper - BossPaper is a wallpapers manager for your jailbroken iPhone or iPod Touch that uses very little...
IntelliScreenX - Need to know where your next meeting is? Do you have any new email?