Here is some more information:
Movies, televisions, video games: flat is out and 3-D is in. We often talk about how Web 2.0 impacts different industries (such as healthcare, journalism or government); now it's time to turn the tables and ask: how is the 3-D movement changing Web 2.0? How can we visualize and interact with our data in three dimensions? From social networking sites to tweeting buses and trains: why it's important that geotagged information generated in our 3-D world be shown in 3-D
You can find the charts for the talk here. You can find out more about Web 2.0 at the O'Reilly Web 2.0 event in NY where Julia also presented.
The attendees were varied (students, IBMers - and there were representatives from a hospital and a bank). The discussion was animated, e.g., whether a sphere is the most appropriate surface to display data, whether other surfaces are possible, applying HD TV ideas on a spherical or other kinds of surfaces. (I dreamt of cerulean spheres last night)
You can contact Julia on twitter
There was an example of an IBM Think sign in the room.