A case study of developing a prototype for a software tool and getting customer feedback in 3 days at a tradeshow. I've written a blog post about this project here: http://ux.red-gate.com/running-a-live-lab-at-a-tradeshow.
Testing the prototype
“The live lab was a wonderful idea. I enjoyed
participating in it and can't wait to see the finished
product. Let me know if you need a beta tester.”
Christoph Ruepprich, Oracle Developer