I have just experienced an unusual pattern of very short battery life with my iPhone over the last few days. My iPhone is a couple of months old. Today I noticed that the back has popped open at the rear of the iPhone behind the main on/off switch. I took it to a Vodaphone shop where I bought it under a service contract. They thought the issue was caused by a faulty battery which has swollen up and popped the back open as described above. The phone has not been dropped or abused in any way. Anyone else experienced this swelling battery problem? My world has just shattered as I felt I possessed the best phone in the world.