I don't believe the device demo experiences themselves were under NDA, however recording devices had been restricted. Oliver Kreylos did a great writeup a while

I don't believe the device demo experiences themselves were under NDA, however recording devices had been restricted. Oliver Kreylos did a great writeup a while back on measuring the FOV: http://doc-ok.org/?p=1274 http://doc-ok.org/?p=1274