Windows 7 up, Mac OS X down in market share war

The latest operating system market-share figures are in, and the news is good for fans of Windows 7, and ho-hum for Mac OS X aficionados. Since its release last October, Windows 7’s star has been steadily rising — and this July it passed the lamentable Windows Vista to become the world’s number-two OS, according to stats from the market watchers at Net Applications.