Clearly visible is what looks like a notifications bar showing two new tweets, and a new icon for the iOS camera app. Could this be what iOS 5 holds in store for us? We all know that a notifications bar is one of the most requested features of iOS and there have been plenty of rumors about it finally arriving on iOS 5, including Peter Hajas (developer behind Mobile Notifier for jailbroken iPhones) interning at Apple.
A new camera icon could also signal a new or improved camera app, though it could have also been just another app called “Camera” on the iPhone since the other apps don't seem to have updated icons - it's impossible to tell for now but stay tuned - we'll find out in a few hours.
source: Ubergizmo