New iPhone to have Magic Mouse-style touch sensitive casing

Apple’s next iPhone will take some influence from the Magic Mouse’s touch-sensitive smarts to add a gesture sensitive casing, according to the latest raft of rumours winging around the web. Plus we’re told to expect a Google Nexus One battling 5MP camera.
Bloomberg claims sources have told it that the new iPhone will have a touch-sensitive casing using similar technology to the Apple Magic Mouse. That sounds cool but we can’t quite work out what the benefit would be of gesturing on the back of the phone when the touchscreen UI is already pretty intuitive.
A more down-to-earth rumour suggests that the new iPhone will pack a 5MP camera and head to manufacturing in April in time for a release in June. That seems likely as the iPhone’s camera is in need of an upgrade and new iPhones usually arrive in the summer.
It’s also suggested (and it seems likely) that the iPhone OS will be updated at the same time as the new iPhone launches. That slightly contradicts yesterday’s rumours that the Apple Tablet has delayed an iPhone OS update.