The new book The Race For a New Game Machine, by two IBM engineers, details how ridiculous the design process was when IBM was making Sony's PS3 cell chip. Microsoft basically got a free ride.
Twitter Is Shifting Right | Future Tech
The WSJ pulls out facts like IBM employees trying to hide their work from people from companies in cubicles next to them, helping one team out (the Microsoft team) with their design process based on knowledge they had already gained from the Sony side, and most importantly, that Microsoft received the chip from manufacturing BEFORE Sony did because they ordered "backup manufacturing capacity from a third party." [WSJ via PS3 Fanboy]