No, it's not the first thing people gravitate toward when tearing open their brand-new iPhone or iPad. Heck, it's probably not even the second or third thing (the USB cable and the Apple sticker are more popular I'm sure).
But, hidden deep within that pretty box is a cube that makes the whole thing work. It's an AC wall-charging unit, and it's as technically impressive as any other component in that box.
Ken Shirriff, a technology buff and blogger, has a complete teardown of Apple's tiny technical wonder on his blog, detailing (exhaustively, I might add) why exactly Apple can charge $29 for it.… Read more