i prefer something like itsAllText, which lets me fire up my own local
editor for any textarea (using it now with emacsclient). employing a
local editing tool lets me keep all my keyboard shortcuts, which is
why i use one editor instead of another.
what i would really like to see is direct embedding of your choice of local editor directly into the textarea. there's no way to satisfy everyone with one editor.
but still, bespin is very cool and an improvement over plain old textareas