The main page for this idea is Summer Coding 2010 ideas - PackageDB Enhancements.
Summary of idea: The Fedora PackageDB contains information that both developers and end users would find useful about the applications and packages in Fedora. There are a large variety of changes that could be useful for it ranging from the mundane (example: porting to TurboGears2, adjusting the way we link between the Application and Package interfaces) to redesigning the database model, or including new features.
Contacts: Toshio Kuratomi
Mentor(s): Toshio Kuratomi
Notes: Some ideas are listed on https://fedorahosted.org/packagedb/wiki/ToDo