I would like to see a more robust security model for the control panel. For example, I would like to be able to create n number of admin users with unique names and passwords. I would also like to have the security role based so I can control what types of admin users have access to what things. For example I only want Jr engineers to be able to control mailbox add/edit/delete, but not post office changes. I would also like the ability for the users to create n number of logins and have that in a role based scheme so they can control the access within their account. I think this could easily be done by putting a web based interface on the windows users and groups mmc functionality and leverage the windows security model.