Google has been working with one of Steve Mann's previous collaborators[1], Thad Starner[2]. Thad's actually the Tech Lead on the Glass project. As far as I know, he's been wearing AR systems for just as long and does the majority of his research in this domain. I must admit, I'm extremely jealous when I see Thad walking around campus with his Glass.

[1] http://www.wearcam.org/computing.html/ [2] http://www.cc.gatech.edu/~thad/