And anyone old enough to remember those days realizes that back then Apple was a computer hardware company, and PC sales were most of the bottom line.
Today Apple is a phone company, and PC sales are rounding error on the bottom line. Apple could rebrand select systems and sell them, or create an "Apple-approved" program to certify certain combinations of systems and options as officially supported. Apple could also charge a significant fee for the Apple OSX license on an "Apple-approved" system.
In other words, the 1996 licensing program's problems are mostly irrelevant for today's Apple. (Background:
http://www.macworld.com/article/1133598/macclones.html Note, however, that the link is from spring 2008 and mostly predates Apple's transformation into a phone company.)
Question: How many people would pay Apple $500 for a license to run Apple OSX as a supported OS on a Z-series?