Benchmarks are in FF3.1b is faster then Chrome for Javascript.
http://www.nordichardware.com/news,8095.html
With what I have seen from FF3.1 most complaints for FF3 should be removed as they have improved a TON of crap as well they seem to be adding somethings from what their development page shows. Also it adds new web standards that was just released by the WWC.










