Earlier quoted context omitted.
Hopefully a few hundred million XP users will upgrade. For me, it's all about Internet Explorer. If Win8 does well, IE10 will be the new minimum for html5, and it's a lot better than the previous IE's. http://html5test.com/results/desktop.html Most non-corporate Win7 users should get the IE10 update too. In a year IE8 usage will be in the single digits.
"IE10 will be the new minimum for html5" I'm not sure what this means, but it sounds horrible, I understand IE is getting better, but it did the damage in the early years, and it burnt its bridges with so many users and developers. I cannot see this changing while MS still execute "Embrace, Extend, Extinguish".
What that statement is saying is that the author believes the stable fallback on HTML5 means it will only need to degrade to the point that IE10 will render it.