Interesting analysis. I like how they pin their analysis on software. The best indicator to look at, as even I have stated a few times, Sony's software lineup for 2011 is beautiful compared to Microsoft's and Nintendo's.
What I do quibble, which may have to do with their data collection, is their emphasis on Japan, Americas, and Europe as if Brazil, the Middle East, Africa, and others do not matter.
Japan in comparison to the Americas or Europe is miniscule in comparison and going forward will have a decreasing amount of influence in video game sales due to the demographics, hand-held dominance, and economy. Any analysis emphasizing who has the most in the Japanese market is immediately suspicious to me because if you look at the weekly hardware numbers here on VGChartz, the total amount of hardware and software sold in Japan is tiny compared to the Americas and EMEAA totals.
Just to prove my point, here are the latest total weekly hardware and software by region via VGChartz (14 Nov 2010):
Japan
Total Software: 819,198
Total Hardware: 134,675
EMEAA
Total Software: 8,768,075
Total Hardware: 1,059,813
Americas
Total Software: 15,194,851
Total Hardware: 737,222
Interesting, but very unlikely to happen if the bulk of your analysis is concerned with who wins in Japan.
Analysts would do better if they focused less on Japan and more on Brazil, India, Eastern Europe, the Middle East, and Canada. The US and Japan are oversaturated markets at this point in the generation.
