My first question, as I went to the Google Glass event, was whether I could wear them with my glasses. The invitation said to wear contacts and explained that they could not promise you could see with eyeglasses.
I arrived at Bay7 in downtown Durham with curiosity and was totally surprised to find out they worked fine with glasses! I posted a photo on Google+ and a friend said, looks like the Borg assimilated you . . . .
In a large factory atmosphere, after signing a photo release, they led small groups through a short training on how to use Glass and then a seven minute glassy experience for each individual.
Our trainers told us about the original intention Google had to find a solution to the fact that people were walking dangerously everywhere, crossing streets, driving, walking down sidewalks, with their focus on their cellphones. The idea was to provide a safer way for people to move around while still communing with the world on a device. The device now fits on your head.
The type of things you can do with the glass includes asking for directions, for car, bike or walking, see maps with illumined routes, and be led by voice to your destination. You can say "OK, GLASS!" "I'm Hungry" Then it will show you maps and directions to different restaurants in your area.
I think we see the need for the more capable understanding that we are now experiencing in Google search with greater anticipation of our needs than simply matching a keyword. The vocal search that we now have on our smartphones and with Glass is clearly an example of the new directions the search engine is trying to provide for us . . . anticipation of our every need, even before we speak it.