Aza Raskin (invited speaker to IxDA Interaction08 | Savannah), just
posted a new application which show cases many of the interface
theories that he and his company, Humanized, have been talking about
and he will talk about at the conference
(http://interaction08.ixda.org/).
The new application is called "Songza" and is search, play, and share
for music. It seems to search for content in the public domain like on
YouTube and grab the audio stream from it.