Heard about the "do not be evil" policy in Google? Given the Google Glass, the actual policy seems to be the one from the Phineas and Ferb -- "That's a google, googles don't do much, you know..."
Meet Google Class:
Basically, you have a small monitor stuck just above your eye line. And you get a camera and a button near your temple. That's all. Are you happy with the device? Lots of people seem to be happy. Lots of people hurry to state that this is a new mode of computing altogether. Is it really?
Meet Augmented Reality:
AR is simple in principle. Video is local, metadata is provided by a remote service over the network and is mapped onto the video as a faint overlay.
Google Class could be a new mode of computing if it made the whole eye socket of the glasses, or possibly both, into a monitor and project overlay over it. Only then the Glass would actually be fun to have and use. Otherwise, like I said, it is just a tiny screen glued to the tip of your baseball cap.