Springtomize - Tear down the walls
Cydia - An alternative app store for jailbroken devices.
Five Icon Dock - Tweaks the dock of your jailbroken iPhone so that it can fit five icons instead of four.
Zestia - Zestia is a mobile app designed to assist you in organizing your hectic schedule, social life, and professional persona.
Five-Column Springboard - Adds a fifth column to the homescreen of your jailbroken iOS device.
JazzMyApp - Let JazzMyApp surprise you with amazing apps everyday. Try it out yourself.