I have recently discovered that my relatively new and well taken care of ipad doesn't lay quite flat on any level plane... It wobbles slightly when the top right corner is pressed.. This may be due to the camera and buttons being located there, but it is disheartening none the less. Am I alone on this one? Is this considered "normal"? My mind would be put at ease if this were simply the case with every model. Thanks in advance! Also I'd like to add that the sides of the ipad seem strait as arrows in my eyes; no visible bending/ warping.