Jailbreak Only: ZoomIsBack! - Tap To Zoom Makes A Triumphant Return To The Camera App
Back in iOS 4, it was possible to zoom in the Camera app by double-tapping an iOS device's screen. However, in iOS 5 Apple removed the feature, replacing it with pinch-to-zoom which, in all honesty, isn't that practical. Now, a new jailbreak tweak called "ZoomIsBack!" brings iOS 4's tap-to-zoom feature to iOS 5.