x86 and it's ancestors eating the markets of [iAPX 432, Itanium, i860, i960] has taught a lesson in the value of an install-base in the server and desktop marke

x86 and it's ancestors eating the markets of [iAPX 432, Itanium, i860, i960] has taught a lesson in the value of an install-base in the server and desktop market. Let's see if history repeats itself? Apple has never seemed to really be into the concept of backward compatibility; but historically the rest of the industry has been. Whatever happens, I'll bet it won't be boring.