Winterboard - Give your iPhone or iPod Touch a graphical overhaul!
Springtomize - Tear down the walls
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...
Five Icon Dock - Tweaks the dock of your jailbroken iPhone so that it can fit five icons instead of four.
IntelliScreenX - Need to know where your next meeting is? Do you have any new email?