Safari public beta does not support CSS absolute positioning correctly (if at all). Immediately following the text position marked by the dagger, there is a <span> element that is positioned to the right of the <div> block that contains this paragraph†← this should be to the right of the paragraph, lining up with the dagger. In IE 5.x, Mozilla 1.2, and Chimera 0.6+, the contents of the <span> element appears in the margin directly to the right of the dagger.
I should note that Chimera 0.6 rendered this test with the marginal note shifted down by one line; this has been fixed in subsequent builds.
Fonts also render substantially smaller than other browsers, which is not a good thing when you consider that most sites specify fonts that are too small in the first place.
At the very least, the preferences panel needs a default text-zoom setting to enable compatibility with other browsers.
Worse, the "make text bigger" button does not scale line-height when it scales font-size (hit it a few times on this page). This is a crippling flaw for people who need to enlarge the fonts to read comfortably.