I took a quick look at my user-agent stats for this month so far (three whole days), and it breaks down as follows. Note that all of these are Mac browsers, with the obvious exceptions of MSIE 6.0 and Googlebot.
• 26.4% Safari 51
• 17.2% MSIE 5.x
• 5.4% MSIE 6.0 (Win NT 5.1)
• 5.8% Mozilla Mac
• 2.3% NetNewsWire Lite
• 2.1% Googlebot
• 1.8% Mozilla/3.0 (compatible)
• 1.7% OmniWeb 4.1.1
Poor OmniWeb – used by fewer folk than are using NS 3. But three cheers for Safari!