The Mac OS X consolidated its strong market position, now having 9.93% of the internet traffic as measured by Net Applications. The iPhone grew from 0.44% in December 2008 to 0.48% in January 2009. The iPod Touch did even better, growing 37.5% to 0.11%. With Apple doing so well, it's no miracle others are hurting.
The biggest loser here is Linux, which dropped 3.53% from 0.85 to 0.82%. The other loser is Windows, which dropped to 88.27%, from 88.68% in December. Windows 7 made a decent impact here, rising from, well, nothing, to 0.23% on January 31st; not bad for a beta release.
The below schematic shows all the important data in one view:
As always, these figures come with a lot of ifs and buts, so take them with a grain of salt. Still, some figures are better than no figures at all.



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