I have been having some weirdness with the camera, too... The overlay doesn't always draw the camera's input... by this I mean I just get a black screen with the camera most of the time. If I touch the scroll wheel to focus, it will draw a little in the center of the screen, but the rest will be black. Sliding the keyboard while the camera is open causes it/fixes it... Bringing up the camera menu by tapping the screen causes it to redraw and it works fine then... most of the time.