Infinifolders: Unlimited Apps in iOS 4 Folders

Available in Cydia at $1.99, Infinifolders is a great tweak by chpwn (developer of Infinidock and Infiniboard) that allows you to bypass Apple’s limitations of 12 apps in a single iOS 4 folder. With Infinifolders you’ll be able to put inside a folder as many apps as you want, choose the color of the scroll bar and even paginate the folder.

It’s a very useful tweak, recommended to jailbreakers.