Here's a picture taken from someone in the back of our 450-person room last week, during our talk at NCTM. Sorry about the quality - apparently it was a cellphone camera ;-) Next time we'll get someone to take a professional video.
All of the slides, handouts, and SketchUp models used in our talk can be found on Jon Choate's website.
I've also placed all of the Sketchup models in Google's 3D Warehouse. These models have scenes you can click to progress through each model.
Anyone can design anything in 3D! www.3dvinci.net