@bumidan... ahh yes, I missed that bit.
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Ok In America, Microsoft software has sold ~20.5 million this generation (by VGC)
So using the 7.5 attach ratio for total software in Americas we get 91 million units of software... although VGC has it higher at 112 million. (almost 10:1 attach ratio... which can't be right because MS themselves have stated 67 million 3rd party sales in USA.... add 10% (Canada etc) to make 75 million, then add 20 million for 1st party and you only have 95 million.... so VGC is overtracking 360 software)
either way.... The Source is correct, 1st:3rd party on the X360 is about 20%
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For PS3.... we know the total 3rd party software in USA is just under 20 million (up to May or June 2008).... add 10% to get Americas, so about 22 million..... and going by VGC the first party software adds to 7.5 million
So Sony 1st:3rd party is about 1:3, or 75 % 3rd party.
Nintendo: 52.5% 3rd party (Nintendo figure for worldwide)
Sony: ~ 75% (estimate using VGC Americas/NPD USA)
MS: ~ 80% ( " " " )
