Sometimes I wonder if we're in a transitionary phase of mobile technology where we are still at the point of directing our attention at the actual technology rather than using it as a compliment to our "real-world" experience. Glass seems like a step forward in theory, but in practicality I believe it's just moving the screen from your pocket to the side of your head.
You're right, we are definitely in a transitory phase. But it goes beyond just "mobile technology", in my opinion.
I see this as going all the way back to the first stone tablet. Humans reading / watching a framed format. With the advent of cinema in the 20th Century, this form evolves into a screen. Presently, we are witnessing the interface change from a screen to a lens. This will be a crucial pivot in the human trajectory, as the technology becomes more sophisticated and comes to color the seeing aparatus. The politics and dialogue around how this technology "compliments our real world experience" will be a very interesting space to watch.
