See SimpleAdminIdeas on the TurboGears Trac wiki for a sumamry of where things are at present. Again this is an attempt to pull together with other projects as well as to make this something that plugs in when needed.
Also on the mailing list there has been lots of activity around authentication and authorisation (more simply described as identification and permission).
It is exciting to see how much progress is being made, looking forward to lots more too.
Oh by the way CRUD = Create, Read, Update. Delete. In this context an automatic way of creating forms for these basic administrative tasks for database tables.