Around that time I was shipped out to do a video presentation with 3 laptops. 2 of them were cued up with Powerpoint and synchronized to play at the same time.

Around that time I was shipped out to do a video presentation with 3 laptops. 2 of them were cued up with Powerpoint and synchronized to play at the same time. If one went down I could switchover seamlessly. I also had a cold backup laptop in case the 2 running laptops failed. The only presentation I've seen where I think Jobs went off the script was when the 3G and wifi went down in Moscone and the demo phone couldn't open Facetime, IIRC. Telling a bunch of journalists to stop live streaming went about as well as you could imagine.