Lots of folks are busy documenting the bad things about Safari (I sent in about a dozen bugs, and I’ll wait for the next beta before looking again). One good thing I noticed is that it has the appropriate hooks to make OS X’s summarize engine work. Select the text on a page, tell it to summarize, and you get a dynamically condensed version of the text. If the interface weren’t so clunky, it would be really handy for deciding if you really want to read further in someone’s site.
It would be trivial for the developers to add a button to the toolbar that selected the body text, called the summary service, and returned the results in a new window, nicely formatted. Since Safari is more-or-less scriptable, I was able to knock together a quick AppleScript that shows off the idea. Drop it into ~/Library/Scripts and run it on whatever page you’re currently looking at.