Console wars aside, I am genuinely interested on the book from a marketing standpoint. As some persons have pointed out before, the Japanese perspective of the ps3 "failure" should be really fascinating. I mean, in Japan it was mainly a playstation vs wii issue (the xbox was never really meant to gain the nº1 spot), the price also wasn't considered as too much of a burden, and it was there where the videogame shift has been faster (towards non games and the like).
About if the ps3 is a failure, well, it has been a failure, so far and this is an industry based on snowball effects and momentuum, so I really doubt that it will bet better soon. Unless they are able to react now and start cutting down prices right now (not in 10 years) and getting megatonic-like annoucements on the game front, I really don't see it selling.