I was there in Durham NC on Saturday. The article is wrong in at least one point
They had up to 80 visitors wearing Glass at the same time in the room, not just one. They never demoed the tilt-the-head trick to me. Afterwards I was told you could turn your head to see menus but I didn't see that either,
There were several things that bugged me about the demo.
1. The bandwidth from the Glass to the Internet was so pathetic (and mismanaged) that most things didn't...