@[7]: does this include user functions, too?

What about
-file comparison
-position remembering across files
-bookmarks (remembered during sessions)
-user definable execution keys

What I would really like to see is something sort of a capturing of console output or so integrated in SED or your app..

[EDIT]
And I hope you don't do auto indents and auto completions of braces and crap like this :-)