Certainly with 1GB of RAM, bigger caches and four cores at 1GHz I would expect all browsers to run a lot better on the Pi.
What I would really like to see is any browser, even if it's just a web view widget in a simple Qt application, that can render webgl. We have a great GPU for it so why not already?
ChromeOS. That would be nice to. But hey, one can run Chrome apps as extensions to the Chrome browser. Those apps can get to the serial port and such. I would be very happy with that.