This is the kind of stuff that convinces us eMagin has a bright future and more power efficent future

Parviz said that he believes Google has made good progress, and called the current version “a nice first step to where we want to go,” but he also conceded that there’s a long road ahead and that the current form factor needs to evolve to become more comfortable and more power efficient (so it requires less charging time).

http://techcrunch.com/2014/07/09/original-google-glass-chief-gives-us-a-clue-about-googles-prime-motivator-in-wearable-design/