I updated to 1.1.4 yesterday (8gb, non-jailbroken iPhone) and all seemed fine with my phone. I made several calls, both incoming and outgoing, with no problems. This morning my wife called me. My phone started ringing and I glanced at the screen and saw the incoming CID say "Home". As I reached to pickup & answer the call, the ring tone stopped and the phone just made a God-awful screeching noise - kind of like an alarm clock. It was totally unresponsive to buttons and touch screen. I held the home & lock buttons for about 45 seconds before it turned off (it was making that horrible noise the entire time and a bunch of people stuck their heads in my office to ask what it was). Once the phone was off, it wouldn't turn back on for love or money. I was getting scared that it might really be dead! I plugged it into my computer and literally as soon as it was in the dock it turned back on. It rebooted and now seems okay. I was able to make/take a couple of calls with it. I am curious if anyone else out there has experienced this since upgrading?