The iOS 5 brings notification center that shows useful information without unlocking the iPhone. The jailbreak community has been pretty active in making the most of this new feature. Today, a new tweak has popped up in Bigbossâ€™ repository. It is called QuickMemo.
After installing this free tweak, you will be able write anything on the homscreen itself which is great for reminding yourself of something everytime you unlock the iPhone. The utility takes up just 14 kilo bytes and is worth installing.