 * Improve Backend
   * handle non-existant option {tl,br}-{x,y}, resolution, source, etc.
   * 


 * DBus service
   * Scanner list
   * Buttons
   * publish with avahi

 * Capplet
   * Option group

 * Mass Acquisition
   * multipage PDF

 * gthumb plugin

 * abiword plugin
   * ocrad OCR

 * evolution plugin
