Re: It was all they could have done*
not quite full story. Remember PowerPC uses Si on Cu, a dead ended technology it seems. Good at time, just superceded. Intel has a better chip making technology. Accordingly, sell plant and contract output back. IBM have been encouraging Linux for a long time. How long do you think AIX has to run ? 10 years maybe ? Did IBM see this coming ? I think so.
Finally, it is an excellent illustration of the problem for _BIG_ industries as Tim writes. The cost of buying those chip writing machines, one supplier in Germany ITIRC, requires massive turnover at any unit cost to be worthwhile. Hence as CPUs and signal processing chips get more capable and complex one needs a bigger market. Even RISC like ARM is growing in size. Hence the steady erosion of architectures and profits outside the dominant one, if any. When did SPARC last make a decent buck ? MIPS ? PA_RISC, Itanic ?
In aviation Boeing and Airbus have same issue. How many flying cattle trucks does the world need ? Fortunately for Airbus, Boeing have employed, IMHO, a thoroughly modern merkin CEO and board, so they wont be around many more decades. Probably be bought out by Sukhoi around 2050.
Finally, I regard food miles, buy local food concepts as just another european or merkin greenie protectionist misrepresentation. Fortunately, chocolate and coffee have to be traded to the frozen wastelands of the North where these creatures have a heartland of sorts, so the slogans will never quite ring true.