I’m still sticking with it, but I can add three more annoyances to the list.

1. When I click a link in tab ‘A’, it opens tab ‘D’ and shifts the focus there.  When I close tab ‘D’ it takes me back to tab ‘C’.  I want to go back to ‘A’ because that’s where I last was.
2. Cut & paste of HTML seems dodgy.  I want to copy my shownotes from Evernote to Mevio.  In Firefox, I just copy it and all is good. Safari (and versions prior to 4 do this as well) strips the HTML and leaves me with plain text.  I note that one improvement in Safari 4 is that is shows the formatted text in the Mevio editor, but as soon as I save it, it reverts to text.  This is one task I am going to have to use Firefox for every week.  Grrr.
3. I like that my browser remembers what I type into fields.  It took me a while to learn how, in Firefox, to remove remembered entries that I no longer wanted.  I can find no way to do this in Safari.
4. I’ll have to retrain myself not to use double spaces after full stops, as Safari likes to render the second space at the start of a line if the line break falls there.  Why?  In HTML, whitespace is all equal!