I use wordpress-mu as a platform for hosting other people's sites. Obviously I do not give them access to php input areas for security purposes.
One thing that would make this plugin 'perfect' for mu, would be to have the ability to drag and drop a current widget, into the section widget.
That way the user could utilize section widgets almost to their full extent, and giving me the security I need.
Are there any plans on expanding section widgets to allow the user to drag n drop a widget into section widgets panels?