Columns:

  * Make it easier to show/hide columns?  (eg: Windows Media Player
    pops up a menu when you right-click on the column headers)

  * [POST-1.0] Add the ability for users to add more columns (eg, for
   new tags)

    A canned set of columns should be good enough for now.

Editing tags:

  * [POST-1.0] Support multiple values for a given tag in the tag editor dialog.

Tree UI:

  * [POST-1.0] Show the number of items in a tree? (how does this interact with
    editing labels?)

General:

  * [POST-1.0] Multiple windows for different libraries; kill Exit
    in favor of Close.

    Esoteric feature; even I don't really need it.  This also wreaks
    havoc with the present configuration scheme.

    NOTE: the better music player might be easier to implement if I
   have support for multiple views in the underlying modules.

  * [POST-1.0] Move files around to match the virtual organization

  * [POST-1.0] Better music player.

    A queue-based player based on Music Librarian would eat XMMS'
    breakfast.  (but probably not its lunch or dinner)

  * [POST-1.0] Better plugin interface

    It would be nice if the user could choose not to load particular
    plugins, maybe. 
