GPL To Be Tested by Mattel?
... if cphack includes illegally obtained code. You can't license code that you don't own.
Of course that is the essential issue -- is reverse engineering a violation of the original code license?
I was surprised that the authors of cphack bowed out, especially right on the tails of the ACLU. I'd love to see the ACLU spearhead a case that establishes once and for all that reverse engineering code can constitute a 'fair use' which is inherent to the right to own property, and no amount of license mubo-jumbo can make it go away.