They’ve become quite used to computing without Windows anywhere in sight, so taking the next step to Android on their desktop is much easier now than it would have been ten years ago when it was much more of a Windows world.
This is what makes Android on the desktop so powerful, and potentially much more of a threat to Windows than any other Linux distribution. I know that there will be some Linux users out there who wonder why we need yet another desktop distribution. Well, we don’t really need it. But it has the potential to dwarf all existing desktop distros if it appeals to the gigantic Android user base that exists in the mobile world.