It isn't just a bit of regulation that will be required. The freedom of the press means that anyone who wants to, or even claims to eventually want to publish has a right to take pictures and video in any public place so long as their rebroadcast of copyrighted material falls into the fair use category. The right of free press doesn't give people the right to infringe on copyright or the right to privacy, but the right to privacy doesn't extend to public places. Even preventing perverts from taking upskirt videos and posting them on the web wasn't simple to legislate and that relied on defining privacy in a way that was painfully obvious already.
Consider that a ban on public photography is pointless if it applies only to g-glass since there are dozens of alternatives to clandestine video already available and dozens more will spring up as soon as g-glass is banned on a widespread basis. Contacts that take video and hidden cameras doing constant upload that melt without any provable trace of what they were doing will inevitably spring up to meet the demand. More sinister is that the fight against g-glass is is actually a fight against the right of the people to know what is going on. Nothing would make a corrupt government happier than to know that they need not fear public proof of wrongdoing.
The fight against paparazzi has been going on for many, many years and this is just a discussion of one of their most obvious potential tools. This problem isn't confined to g-glass, but the potential remedies to the problem it presents must be considered carefully if they are to have a result which doesn't cause other problems worse than the ones they solve.
You don't want to lose your privacy, and you have a right to that privacy. You're already guaranteed the right to privacy in certain circumstances, such as in your home and on your phone conversations, but that only extends to certain points. Federal wiretapping laws prohibit someone from recording your conversations on the phone unless the person you're talking to knows it is being recorded. Donald Sterling's recent time in the press shows that even in your own home, your privacy isn't guaranteed.
What kind of laws exactly do you propose where amateur journalists and bloggers can still record and report news they feel is in the public interest without having to fight a legal battle against big money and corrupt government interests?