A rather interesting application hit the Cydia store today, called Flex
by iOS developer John Coates
. With Flex, you can actually create your own modifications on your iOS device without any programming knowledge. Having knowledge of the inner workings of iOS does help, however.
When you open Flex, you will see three separate tabs: Patches, Cloud, and About. The Patches tab is your home tab and this is where all the modifications that you create