<i>It is standard practice for Apple to request confidentiality from the FCC. But the request has been viewed as curious by some, considering that prototypes of the near-final iPhone 4 design were publicly disassembled, revealing many of the new device's secrets.</i><p>The letter was probably prepared months ago, or quite possibly is the same as previous letters. Other than the items on the second page, at the top (above the graphic), I'm sure it's indistinguishable from the ones issued for previous models.