FWIW, it seems a bit slower to us here at furfly HQ. This may be because we're on a T1, so for us the savings in transmission time may be smaller than the extra overhead of unzipping. I'm using Mozilla and Mike is using Safari, both on Mac OS X.
I'm not suggesting you change it back, since it obviously helps most people, but anyone wanting to use this in an environment of fast connections might want to do some testing first.
