It would be very helpful to be able to add custom fields that can be filled out in the list info section (where you can change the list color, add attachments, etc.).
Just to be clear, I know you can customize the fields for the TASKS at the list level. I want to be able to dictate fields for LISTS. This would make it so when you are treating a list as a project you can show (and hopefully report) on specific information types on your projects (like value, type of project, etc.)