Quote: Originally Posted by Beta
The data on Linux is always wrong. These reports on go by how many copies where sold and how many of them have been active in the past 3 months.
Actually, this particular metric vendor uses web traffic to a number (very large) of customer sites that provide them data, and a good deal of these sites large, well-trafficked sites. However, StatCounter seems to show Windows 7 percentages a bit higher than other metric counters (such as NetMarketShare or W3Counter), which means you should never use just one as your only source. I personally prefer NetMarketShare's numbers, because they seem to a good number of the largest web sites, as well as good geographic dispersion of trackers, in their pool.
Using NetMarketShare, it shows (as of September 2011) XP still at just over 50% of the installed base going to their trackers, with Windows 7 at 32.4% and Vista at 9.09% (Linux, any version, is 1.11%), as worldwide numbers. If China is indeed removed from this pool (and China only), those numbers become more understandable:
43% XP, 36% Windows 7, 11% Vista
If you filter out Asia (given the vast majority of installations in Asia are XP, and a lot of those are suspected to be pirated by the vendor themselves):
39.7% XP, 37% Windows 7, 12% Vista
For reference, Asia shows up as:
62% XP, 27% Windows 7, 5.8% Vista
China specifically shows up as:
75% XP, 18.6% Windows 7, 2.5% Vista
Interesting, indeed. Windows 7's trend (adding about 1.2% worldwide a month, and slightly higher at 1.3% a month with Asia filtered out) would indicate that if trends stay roughly as-is, sometime in November Windows 7 will surpass the Windows XP installed base everywhere but Asia (where piracy is indeed rampant, especially in China and southeastern Asia).