How to change the space used by the battery icon on the iPhone?
<p>I noticed that this iPhone app Reeder has a special icon on top of the battery icon. How is this done? It even does animation in that corner so I assume you can just lay an UIView on top of the battery?</p>

<p>Also a side question, how do you overlay a texture on top of NavBar and the bottom Toolbar? Noticed how the bars are not exactly black, it has a texture on it.</p>

<p><img src="http://img689.imageshack.us/img689/1224/photofo.jpg" alt="alt text"></p>
