I don't see how you can consider Windows 8 on tablets as a success, since the "on tablets" part makes it a failure already. Heck even the iPad is a failure since it's simply an Angry Birds/Draw Something/Tap Tap Revenge gaming gadget, and not a tablet.
What's funny is that he is telling us that the desktop/keyboard/mouse is going to be a thing of the past, thus the use of Metro on Win8. Then he tells how cool it would be having Win8 on a tablet and then plugging in an external keyboard, mouse and monitor...
which makes it a desktop with a mouse and keyboard, the very thing that he says will be a thing of the past...lol!
I have been here for a bit of time but I'm still classed as a noobie because I normally stay out of the endless 'one versus the other' arguments here that never produce anything more than smug people on both sides (AMD/Nvidia - AMD/Intel and so on) who know that they are right and the other side is wrong.
I read both sides and draw my own conclusions after further research but the pitched battles can be fun to peruse. The Win7/Win8 'argument' is fun to engage in because it's one company whose products I have been selling and using for many years now. I've personally run Win8 on my main system and currently have it on a demo system for customers to check out, and I've seen and heard more than enough to draw my own conclusions.
Microsoft is making a mistake trying to make a desktop look and run like a tablet. While I acknowledge that others may love Win8, a majority of my customers, my family (eight computers there alone) and quite a few of my friends all agree that it isn't their cup of tea.
But what do we know, we're just people who use Windows every day.