Zeldman's IE9 Preview
On the other hand, Microsoft’s refusal to switch to Webkit gives Apple and Google a competitive advantage, and that is good because a web in which one browser has a monopoly stifles standards and innovation alike. By torturing the IE rendering engine every couple of years instead of putting it out of its misery, Microsoft contributes to the withering away of its own monopoly. That might not be good for the shareholders, but it is great for everyone else.
(via Daring Fireball)