David McNab just released ezsqlobject, a wrapper around SQLObject to make it easier/faster to start using SQLObject with an existing database. Basically you point his connection wrapper at a database, and attributes of the connection are tables (SQLObject classes). It makes some of the other introspection mechanisms a bit more public as well. It would probably be a convenient basis for a phpMyAdmin like application.
It's always nice to see people take things off in their own directions.