Currently the images of many ToF cameras (Camcube2, Camcube3, Kinect) are provided flipped around the y-Axis by the according devices. The images should be displayed like for a standard video camera ("an object moving in front of the camera from left to right (from the perspective of the camera) should also move in the image from left to right").
Because the original image orientation may differ from camera to camera the flip should probably be performed in the individual devices of the cameras.