For a U2 gig, UVA were asked to create a video display for the hanging curtain of LED balls used throughout the gig, their repsonse was a camera based system which gathered video loops of the audience and played it back during the performance of one of the songs. They also created other video content for the show.
[quicktime]http://www.uva.co.uk/wp/wp-content/projects/u2/u2web.mov[/quicktime]