I don't think that Microsoft did some real relevant mistakes with the Xbox 360 they more than double the sales compared with the first Xbox and they get a big part of Sonys market share to Xbox so that means indeed they do many things right. Nintendo does also a extremely well job with the Wii, otherwise they would not be the market leader.
Only Sony should real question waht they did wrong with the PS3 because they had lost so many customers compared with the last Generation and well I know many things there did wrong.
1) 599 Dollars at Releas that was only dumb of Sony.
2) Long time no good Games for PS3, people almost waited 3 Years bevore they get the first few good exklusiv PS3 Games.
4) Sony has no own ideas they only copy from others, Move is a 1:1 replica of Wii Mote, PSN is a copy of Xbox live. People wan't own ideas they dont want only copy shit.
5) The PS3 only get Shooter Games former popular Genres on PS2 like JRPGs or Jump and Runs completely miss on the PS3. People want variations they dont want only Shooter Games.
Taht is only a short list wat Sony did wrong with the Ps3, is has definetly a Reason why Sony is on the 3rd place with the PS3 and why they lost so many customers.
