Mozilla Firefox Shiretoko (3.5.4 Pre)

For those who care, I’m trying out the latest and greatest Firefox (3.5.4pre) code named “Shiretoko” and I’m absolutely loving it.  It is lightening fast, I would argue it is just as fast as Chrome which is really saying something.  I can’t speak to the Windows/Mac version but the Ubuntu version has been rock solid for me and I’m loving the performance boost.  Looks like it isn’t going to be released until October but I’m impatient and am glad I am because it is really awesome.  Has anyone else tried it yet?  Oh and for those running a Mac, they say it is also comparable to Chrome speed.