If anybody wants to get a good idea where something like glass could go, read the Phaethon series starting with "The Golden Age". It's a bit of a tough read, but the author spent some serious time considering the implications of a civilization built around always wearing these kind of devices at all times.
Glass acts like a layer on top of the real world, consider then that as the technology improves and the number of people using it increases, you can get rid of things like street signs as the glass will simply show you the pertinent signage for wherever you are looking, going shopping and the device will recognize the product you are looking at and tell you if it's a good deal, people can "project" their idealized image of what they want you to see to your glass, simply looking at somebody will pull up relevant information you need to know like their name and occupation and so on and so forth.
Now project this forward and add more similar layers on top of this. Imagine you can select from several layers according to your philosophy or needs. A Libertarian layer might allow one business to buy the virtual signage of another business and broadcast their brand instead. Or a Maslow Hierarchy layer may strip all branding from your view and simply distill down what they're selling to its bear essentials "food" "clothes" "shoes".
You could select filters in your layers to simply block out things that you don't want to see. "New Derelicte-Block omits undesirables from your world!"
Why build fancy metamaterials when all you have to do is hack the local View Layer broadcast frequency and hide yourself from everybody around.
Why hack it when you can simply unjack completely and rely on everybody's standard install of Derelicte-Block v3.2 to keep you suppressed from their notice?
No, replacing what you see instead of adding to it is a much more difficult and tricky problem. I wouldn't expect it in the near future in a consumer application.
I would imagine that much of the reason for that is that it's a v1.0 product. Accurately registering the display over reality at such a high resolution is no doubt a very hard problem...but one that could be solved.
Short term, glass introduces the concept of this kind of device to the masses.
Though you bring up an interesting point, we are still very far from being able to do much of what you described. Being able to erase people entirely from video in real time is something I haven't seen done, nor do I think it would be feasible in the near future. Additionally, from what I see Google Glass is off in the corner of your vision and translucent so you would be able to see through anything it shows you.
Glass acts like a layer on top of the real world, consider then that as the technology improves and the number of people using it increases, you can get rid of things like street signs as the glass will simply show you the pertinent signage for wherever you are looking, going shopping and the device will recognize the product you are looking at and tell you if it's a good deal, people can "project" their idealized image of what they want you to see to your glass, simply looking at somebody will pull up relevant information you need to know like their name and occupation and so on and so forth.
Now project this forward and add more similar layers on top of this. Imagine you can select from several layers according to your philosophy or needs. A Libertarian layer might allow one business to buy the virtual signage of another business and broadcast their brand instead. Or a Maslow Hierarchy layer may strip all branding from your view and simply distill down what they're selling to its bear essentials "food" "clothes" "shoes".
You could select filters in your layers to simply block out things that you don't want to see. "New Derelicte-Block omits undesirables from your world!"
Why build fancy metamaterials when all you have to do is hack the local View Layer broadcast frequency and hide yourself from everybody around.
Why hack it when you can simply unjack completely and rely on everybody's standard install of Derelicte-Block v3.2 to keep you suppressed from their notice?