Recently Peter Reiser from Sun gave a Voice of the Customer webinar for Atlassian.

Check out the replay of the presentation here: http://blogs.atlassian.com/news/2009/02/sun_microsystem.html

This presentation will be of interest to users of the Bubbles plugin as Bubbles is used extensively in the customisations for Sun Space. The demonstration of the Sun Space functionality is a great example of what can be done by building on top of Confluence.