As the shine wears off the first sparkling new Google Glass headsets out in the wild, the earliest of adopters have started to discover myriad problems with the wearable computers. Beyond aesthetics, professional Glass reviewers and amateur experimenters alike have reported some issues — bad battery life, a bad fit, vulnerability to hackers, and beyond — that might make future buyers reconsider the $1,500 investment when the glasses are available to the masses. ...