I searched for this issue in this forum but didn't find it so I'm posting it, if only for posterity and future reference for anyone who might have the same problem. Woke up this morning to find my camera app acting all weird. When in 'picture-taking' mode instead of seeing a normal image of what the camera is pointing at, I see the image all cut up and jumping and flickering around. If I take a picture it turns out okay, at least. I haven't dropped it or anything. Tried a restart, reset and restore and none of those did anything. I'm planning on taking it in to the Apple Store in a couple of hours. Seems like a hardware issue to me and it's likely they'll give me a loaner and then send a replacement. Anyway, there's a new issue for you all to be aware of.