As normally done by Apple, the "X" is for "10". But this time I think it should be for "Experimental".
Today they have announced 2 new phones. The third, the iPhone X is too much different to the other ones.
I liked the new iPhone X, yes. But I hate the way it shows videos in full-screen. Maybe they add a new API for avoiding that bar and simulating it. Yeah, I am talking about the camera integrated into what would be the notification bar.