The performance enhancements for top sites are very drastic for me. Too bad the only two times I can remember using it was twenty minutes ago on 4.0.4 and just now on 4.0.5. Meh.
What I really want want to know is how I can scroll around in Safari in sites that use scalable vector graphics to show info or pictures (e.g. a big user of this is wikipedia.) One specific link for you all to look at as an example of what I'm looking at is
a wikipedia page for display resolutions. In Safari and Chrome for me this forces me to only be able to view the upper-left hand corner of the graphic, while in Firefox I can view the whole thing by moving around as I would on a large picture viewed at 100%. Anyway to enable Firefox usability in Safari?
I haven't noticed anything on the other enhancements, yet.
That sounds like that would hurt. I don't want to have to walk around with a hardhat on all the time.