A video has been posted by the creators of the interactive musical installation in the washrooms. Check out the video and grab the open source Roomware server if you want to do something like this yourself.
The video

Following are a bunch of links from the Dutch blog, Dutch Cowboys. They did a series of interviews at the event.
FITC general
http://www.dutchcowboys.nl/events/13020
http://www.dutchcowboys.nl/videochannel/video/524

Interview with Dave Girolami from FITC
http://www.dutchcowboys.nl/videochannel/events/527

Interview with agency Adobe booth: Achtung!
http://www.dutchcowboys.nl/events/13016

Interview with agency Adobe booth: Euro RSCG
http://www.dutchcowboys.nl/events/13005

Interview with agency Adobe booth: Qi
http://www.dutchcowboys.nl/events/12999

Interview with agency Adobe booth: Lost Boys
http://www.dutchcowboys.nl/events/12994

PICTURES
http://www.flickr.com/photos/[email protected]/tags/amsterdam/
http://www.flickr.com/photos/mdvisser/tags/fitc/
http://www.flickr.com/photos/marcthiele/
http://www.flickr.com/photos/brianannerl/
http://www.flickr.com/photos/powerflasher/
http://www.flickr.com/photos/niquimerret/
http://www.flickr.com/photos/redhotbeani/tags/fitc/
http://www.flickr.com/photos/dns_roots/
http://www.flickr.com/photos/f-l-e-x/tags/fitc/