Does anyone care about Microsoft anymore?
I will keep it simple. My girlfriend, who uses the Internet but does not know anything about computers now prefers Linux to Windows 7. Why? Because windows always has problems and its always a pain in the ass to fix. However, Linux rarely has problems, and when it does, its pretty easy to fix. Conclusion: the OS is irrelevant; all that matters is having access to the Internet.
I can also reaffirm this in other ways. I can pretty much do anything I want with an Andriod phone. I don't need a laptop or computer (although its useful to have a bigger screen, but then I could buy an Andriod tablet). I don't need Windows; in fact I don't need any OS; I just need a web browser, Java, and IP based services.
Thus operating systems are trivialized. All I need is a device to get to my services on the Internet.