> Because on desktop Windows still has a ~90% market share. This is only true for _PC_ desktops but not for the overall desktop situation. Consider Windows 10

> Because on desktop Windows still has a ~90% market share. This is only true for _PC_ desktops but not for the overall desktop situation. Consider Windows 10. It derives from the mobile Win 8 desktop which is made more suitable for PCs so that people can use office and spreadsheets and other classic software in the traditional Win 7 way. But you can do many of these things right now on Android devices. For instance, gaming and office: https://play.google.com/store/apps/details?id=com.microsoft.office.officehub&hl=en https://play.google.com/store/apps/details?id=com.microsoft.... Both "static" and mobile desktops are continually merging together. Soon we will have mobile desktops which can turn into PC desktops instantly by just plugging the device into a docking station which is connected with a large display, keyboard, and mouse. So when we define "desktop" as the sum of all traditional desktop applications then Android has really overthrown all other OS. The current office versions of Android are yet just not as convenient as PC desktop versions. Soon it will make no difference if you write your letters on a PC or on a mobile device with docking station. Of course this doesn't count for productivity software (software engineering, CAD etc.) which still requires a lot of PC horse power.