[JesseK]

If the Wii remote is anything like the original Xbox, there are several manufacturing plants and not all of them use the exact same parts. Look up "hacking the xbox" to see how S/N-dependant installing Linux on an Xbox really is. The serial number not only tells you the date, but also the place, mfg. assembly line #, etc, which also infers to which DVD reader you have, PIC16F encryptor algorithm, etc.