I noticed today that there is a split on one of the corners of my Silicone back cover for my 13" IPP. I was pretty surprised as I am not one to take it off and put it back on. I put it on when I bought it about a month after getting the IPP a few days after they were released and just left it there. Not that big a deal but 4 months is pretty quick for such an expensive piece to "fail" already in normal use. Having taken it off now too I realize how much weight it actually adds to the IPP and I'm thinking I just want to return it and not get a replacement. At least if Apple will do that. If they will only exchange it I'll have to go with that but I'll probably only use it rarely. Tried to get a picture to show it....(That is the dog's blanket in the back ground. Sorry!) Anyone else had this happen?