A Google Glass device is the opposite of a telepresence robot: the former, a humanized computer; the latter, a computerized human.
Telepresence robots are brilliant for allowing someone to sense an environment and interact with far away people while staying put—giving mobility to someone who is forced to be stationary.
Along these lines, the brilliance of Glass is to enable commonly stationary computer use to anyone forced to be mobile. Wouldn’t it be nice to code, attend meetings, email, and brainstorm, all while on the run?
It would save us many ills from being stationary all day.