A Desktop Operating System is so much more than what the author claims it to be. Lets break down the arguments:

- Viable Gaming Platform: Viable does not mean good.

- Hardware: Things have improved massively, I'll give the author that much, but is nowhere near where Windows is.

- Software: The grade of commercial software for linux is laughable. Sure, you can get plenty of free tools that are also available on other operating systems as well. But you'll be in trouble if you want something as good as Camtasia or Screenflow. Microsoft and Apple both have plenty of high grade commercial apps that work on their platforms.