Right after I downloaded to the iOS6 for my iPhone 4S my battery life was cut in half. By lunch time my phone's battery was like it used to be my midnight. I went to the Apple Store and they said it' a reoccurring problem. They gave me the option of either replacing the battery or the phone (I only bought it a little over a week ago). I opted for the battery for now. A brand new phone is going to put me out of commission for at least half a day! They seemed convinced its the OS and not the battery because they've seen it too often since OS6 was released. I'm sure Apple has caught wind about this by now and we need a fix yesterday!