I think this guy is right, because unlike the IE -> Firefox switch that is slow, Firefox -> Chrome switch can be really fast. And this is just the start. From the user point of view Firefox is almost unchanged since 1.0, I wonder what they really did in all this time: stability, new parts of the standard implemented, better page rendering, and so on, but this is not a DNS server or an SMTP server, it's a browser. You need to go forward in a way that the user can touch, and improve the user life. Just what Chrome is doing.