If you fan of themes for your iphone, this could be one of those apps out there that you want to install in your jailbroken iPhone. You can use well-known theme by surenix that is very popular which is Ayecon and also it's sister, Ayesis. As you know, Winterboard is available through Cydia. If some case you still not jailbreak your iPhone, you can refer to this post for complete tutorial.
