Hi
what do you think about feature of WLW plugin which would allow to edit
- menu settings,
- complete node taxonomy relations,
- revision control,
- url path,
- publishing options
- cck field (image, file) edit.
These settings would plugin automatically read from Drupal. Plugin would be SmartContentSource class and allowed to edit these extra features in special form in WLW.

I see several parts:
1) gateway on Drupal site for reading node specifications or some other way to get actual actual node structure and relations, fields, etc
2) Smart plugin that would read structure from gateway, let the user set the data (menu, cck,..), add this to body/description and send the post through movableapi to Drupal
3) Windows Live Writer BlogAPI would catch and decode part from Smart plugin and set the proper fields in edited node.

This would mean no need to use web administration for end customer in common use and have powerful wysiwyg editor with strong image capabilities (even from clipboard).