LSrotator - LSRotator lets your iPhone's/iPod's lockscreen rotate according to your device's...
AppRecs - AppRecs sorts through reviews in the App Store and automatically helps you filter out inauthentic results.
Cylinder - Sexy homescreen icon animations
Cydia - An alternative app store for jailbroken devices.
Springtomize - Tear down the walls
Fnd - Browse Apple App Store and iTunes on the Web