I am trying to recreate the same in app notifications that the new twitter app has, they call them Ambient Notifications. I've search through apples documentation for both iOS 5 and 6, but I haven't found anything useful, or even relevant. If someone has done this before and could give me an example? I can work off that. Thanks.
I am also searching for same as my client want same functionality in our app but still no luck.but meanwhile you can use this library to achieve your goal https://github.com/brunow/BWStatusBarOverlay