Very interesting.
The people who found a way to break the encryption on DVDs did a similar thing.
They sold t-shirts with a long number on it. This number was an encoded form of the source code of the program needed to decrypt DVD encryption.
If you entered the number in and used certain rules to parse and convert it, you'd end up with the program. If taken to court over it, they'd contest that the prosecutors were trying to make a number illegal, which is an absurd notion.
EDIT:
BTW, I recently purchased that book! Look forward to reading it.
Also, this sort of thing is an EXCELLENT way to teach reframing. The conception before and after are completely different, and after the explanation, it is impossible to think about the notch on the rod the way you did before you had the answer.
[This message has been edited by babayada (edited January 26, 2006).]