Some in the comments claiming the iPhone X was restarted but restart message on iPhone clearly states "restart" as the reason for extra authentication. Failed Touch ID attempts on the other hand will eventually result in the message Craig got on stage. Try it yourself, repeatedly touch you iPhone sensor with the wrong finger and you'll eventually get "Your passcode is required to enable Touch ID".
The telling moment for me is when he rubs his face. The way he rubbed his face instantly implies he's had an issue previously. Granted, it could have been a nervous rub... Time will tell. Either way, I remain skeptical of face unlock in general. There's something about the motion and visual obstruction that hasn't grown on me. Maybe Apple will do it better or maybe we'll just deal with pass codes (many still do anyway).
The iPhone X is the first to feature the new Apple Face ID feature. This feature allows you to unlock your iPhone X with your face. Using various sensors Apple claims Face ID on the iPhone X will reliably scan your face ensuring your devices security.
During today's Apple event there was a slight mishap during the Face ID demo. This video includes my thoughts regarding the event and feature.
How do you feel about Face ID? Are you ready to convert? Will you be buying the new iPhone X, iPhone 8 or iPhone 8 Plus?