Correct me if I'm wrong, but before I updated to 4.2, my iPhone didn't vibrate when I was on a phone call. Whenever I get a notification, it plays the sound and vibrates, even when the iPhone is on my ear. This didn't used to happen. It's actually kinda annoying and I wish it would just make the little sound, instead of vibrating on my face. Has anyone else experienced this/found fixes? Thank you!