In October, Windows 7 usage has for the first time surpassed Windows XP usage globally according to statistics from StatCounter. In other words, Windows 7 just became the most widely used desktop OS in the world.

This has been a long time coming. Windows XP has been at the top for eons (it launched 10 years ago, and once established, didn’t let go). Windows Vista never managed to threaten XP, so it wasn’t until Windows 7 came around that a shift really started to happen.

And that shift has happened fast. Windows 7 launched in October of 2009, then…