The Webkit team went and put out a new version of their next-gen Javascript engine called Squirrelfish Extreme. The performance is pretty awesome – it’s twice as fast as the previous iteration. While their new engine still can’t match Chrome in Google’s V8 tuning benchmark (see this earlier post on the subject), the SunSpider and Dromaeo scores have improved a lot.

Here’s a chart with the relative performance of the browsers from the previous story with extreme squirrels added:

I guess we have a winner.