I've never been backstage for a big keynote before. There's a lot going on back there. Each demo runs on its own machine, so if one messes up it doesn't hurt the others. There are monitors everywhere showing what's on all the cameras and what's going out as the feed. There's one half for the camera and production people, and one half for the demo people. Here's a glimpse of the demo half:
Crowded, noisy, hot, and people are standing in your way sometimes. Best seat in the house!
Also, I'm just loving the signs throughout the Bellagio. There are all different ones (water, wires, light bulbs etc) but I think this is my favourite:
Watching something launch feels like it wouldn't be exciting, after all how long have I been working with this product? But you know what, it is!