I had the distinct honor and pleasure of presenting a new app that we've been working on at the TechCrunch Disrupt conference as part of their Battlefield competition. The competition pits 30+ startups against each other in a judged competition. Each team gets roughly five minutes to present, followed by another five minutes of questions from the judges. Overall, I think it worked out well even though we didn't win. Here's the video (first there's an ad).
TechCrunch also did a pretty good writeup of the app, which saves me from having to explain it.