Google Glass, is a cool new device being developed by tech giant Google. It is a wearable specs running on Android (which is also developed by Google), that enables people to surf the net, GPS, social networking, and even taking photographs (and videos too). 

The invention of Google Glass sparks a new heated debate regarding privacy and etiquette issues. Google is aware of the polarizing effect of its smart spectacles, which let users snap photos, shoot video and perform lots of other tasks in front of their eyes. This week the company released an etiquette guide explaining how users can avoid being labeled a "Glasshole" when strutting around with the headware.

A how-not-to-be-a-jerk guidebook may be helpful to the tens of thousands of current Glass users -- but the parameters were designed by Google, not society as a whole. And it's hardly a legal boundary.

The potential legal issues around Glass and its ilk are numerous, Shear said: "Copyright issues if someone tapes in a movie theater. Invasion of privacy. Peeping Tom laws. HIPAA problems with Glass in a doctor's office. Issues with taping kids."

But Glass aficionados argue Glass itself doesn't change much about any those scenarios from a privacy standpoint: Cameras dot the streets and shops of many cities as it is, and in any case, they could just as easily record anything Glass captures on smartphones and cameras.

That's what developers like Abadie, who calls her early Glass experience "perhaps the great experiment of my life," are hoping to create. Barrett doesn't think Glass will ever become a constant presence in most people's lives, activated on dates and at concerts.

Angela McIntyre, a research director for tech-focused firm Gartner who covers wearable devices, said the entire debate may seem quaint someday.

"People tend to forget the historical view, which is that almost any new camera has sparked questions about privacy," McIntyre said.

"After the first consumer-focused Kodak camera came out, some beaches banned them," she added. "Then with smartphones, we were concerned about the gym and bathrooms. But we don't give them a thought now. They're just part of our world."