Hi guys, I just came across with this problem while having a video call on an iPhone 4S. Suddenly the image from the front camera started "blinking" (the other person could see the blinking as well). I just called him again and it was ok, although after a while happened again. Now it's fine. My concern is whether this is a software problem in the FaceTime app or a hardware problem with my device (calling again seems to solve the problem). For those who use FaceTime often, are you aware of any problem like this? Thanks!