I sent my iPhone 4 to Apple because of a defect/dust under the glass. I had been checking the status every day to see when the replacement might ship but it was still on "Diagnosing Device". Well, this morning my old iPhone showed up with a letter stating that Apple-certified technicians had determined my iPhone to be within spec and working properly. The question is did they even look at the screen? The little foam bag it came in looks suspiciously like the one I put it in before sending it away. Are they normally this pathetic or did I get someone who needs corrective lenses?