I have no proof for this, I`m maybe a little bit late. But need youre help. I think I resolved a mystery. Have a look at an offical picture from the Apple Homepage: Uploaded with ImageShack.us It shows the notifications. I make a reference to this article: http://www.tuaw.com/2011/02/16/the-four-inch-iphone-display-doing-the-math/ (please read it, its interesting) Apple cant force app developers to change to resolution on their apps for a few pixels. But they can use the "extra" pixels for notifactions that can come up without disturb the main application. So how many pixels do this new notifactions use is the question?