This is really fascinating, although a blow for the chrome team.
It would be even more interested to see performance based on the javascript that, say, twitter and facebook use, but I would guess that it's very difficult to feed the scripts the correct sort of data for benchmarking.
This is not a blow to the Chrome team. Chrome came out to raise the water level and lift all boats. They're achieving that. Sure, a nice bonus is to be the fastest at all times, but leapfrogging is probably even better as it keeps everyone heads down rather than just conceeding to Chrome.
It would be even more interested to see performance based on the javascript that, say, twitter and facebook use, but I would guess that it's very difficult to feed the scripts the correct sort of data for benchmarking.