Is there a particular reason the manual and the tools have to be a flight of stairs away from the technician? I'd wager that the comparison would lose some steam if the tech could just turn his head to the right.
And as far as the software goes, there's a lot more there on display than just Glass. For instance, there are at least two cameras in this screenshot that are just magically implied to exist - one taking high quality video of the supervisor, and one taking high-quality video of the employee: http://i.imgur.com/qLjCoou.png
And as far as the software goes, there's a lot more there on display than just Glass. For instance, there are at least two cameras in this screenshot that are just magically implied to exist - one taking high quality video of the supervisor, and one taking high-quality video of the employee: http://i.imgur.com/qLjCoou.png