I'm reading that post as what he is talking about is Windows RT, not Windows 8 - but I'm not sure. If what he says is true on Windows 8, why am I able to install and play games? Why can I stay on the desktop side for days and never even look at Metro/Modern or whatever they call it now? Windows 8 is x86 based architecture and legacy programs work just fine on it.
Now, Windows RT? Yes, all that is true from what I understand. It's strictly going to be "Metro" and there is no desktop side.
Windows RT and Windows 8 are two different animals.
From a tech writer named Jeff Bertolucci...
When Microsoft launches Windows 8 on October 26, it also will unveil Windows RT, a new version of Microsoft's operating system designed specifically for ARM-based devices. Windows 8 and Windows RT have much in common, particularly the Modern UI Style (formerly Metro) design, with Live Tiles that dynamically display personalized information such as the current weather or the number of messages in your inbox. However, they have dramatic differences as well, most notably Windows RT's inability to run legacy (Intel X86-based) Windows apps.
You cannot buy Windows RT and install it on a computer as it will not run natively on Intel or AMD powered computers. Windows 8 will also not run on an ARM powered device.
Yes, the desktop is still supported in Windows 8. But what about Windows 9 or Windows 10? How long will it take before desktop support is dropped?