Windows XP still most popular OS

Here's NetMarketShare's Operating System Total Market Share rundown of the significant players for October, 2010 (September '10 figures in parentheses) tracking changes over the the past month.

Analysis summary is simple. Windows gained a smidge and Apple lost ground by about the same fraction. iOS share increased slightly, extending its lead over Linux which was essentially static.

Windows 91.12% (91.08%)
Mac 4.98% (5.03%)
iOS 1.25% (1.18%)
JavaME 0.92% (0.95%)
Linux 0.86% (0.85%)
Symbian 0.27% (0.30%)
Android 0.27% (0.24%)
BlackBerry 0.10% (0.10%)
Windows Mobile 0.03% (0.04%)

Operating System Versions
In terms of OS specific versions, Windows XP and Vista continue their fade, with XP finally dropping below 60 per cent share (nevertheless still in front in raw numbers of users by a yawning margin), Windows 7 continues to grow share. Apple's OS 10.6 Snow Leopard is the most prolific Mac OS version prowling for a fifth month, roughly quadrupling OS 10.4 Tiger's receding user share (holding on, though - only receding another four-tenths of a point last month) - a contrast with Windows, whose OS 10.4 contemporary Windows XP, as noted, is still the most prolific version in the Windows space.

Windows
Windows XP 59.07% (60.03%)
Windows 7 18.24% (17.10%)
Windows Vista 12.88% (13.35% (14.00%)
Windows 2000 0.39% (0.39%)
Windows NT 0.36% (0.13% )

Macintosh
MacOS X 10.6 - 2.88% (2.72%)
Mac OS X 10.5 - 1.60% (1.87%)
Mac OS X 10.4 0.48% (0.52%)
iOS 1.25% (1.17%)
Mac OS X (no version reported) 0.08% (0.09)

Linux 0.86% (0.85%)