IIRC they used a variation of this a second time on a newer model of iPod. They found a way to trigger the click speaker, wrote a program to dump the ROM via th

IIRC they used a variation of this a second time on a newer model of iPod. They found a way to trigger the click speaker, wrote a program to dump the ROM via the clicker Morse code style, and left it sitting next to a microphone in a foam lined box for a few days.