Related link: http://www.turbogears.org/docs/TurboTunes/index.html
CatWalk is a web-based database browser which is slated for inclusion in TG 0.9. CatWalk has a very web2.0ish feel to it. Certain areas support drag and drop. It appears to do a great job in facilitating a programmer to quickly populate a database with a small sample of data.
As I watched the video, I was impressed yet again by the innovation that has gone into this project. The new non-CatWalk portion of the screencast walks through creating an iTunes-like web application.
I really have nothing left to say at this point other than, “Watch the video.”