Now, this is cool:
<p contentEditable="true">This is a test (click me)</p>
I was looking for a in-line editor (on the order of jEditable) but it turns out all the modern browsers have it built-in.
However, my sendkeys plugin doesn't work and the position of textpopupup is messed up:
<p id="hebrew" contentEditable="true">This is a test (click me)</p>
$('#hebrew').hebrewKeyboard();
More stuff to work on. Sigh
Update 2010-11-21: new textpopup now is positioned correctly. Now to update the documentation and fix sendkeys.