re: It all sounds positively dreadful to me.
Most people would agree, at least those that had access to a sailboat, a horse, or a Porsche, and a place to run them.
This is the wave of the future. So many applications come to mind that it's like telling somebody thirty years ago exactly what the Internet is good for. And as always, there will be Good Things and Bad Things.
In "Ghost in the Shell," everybody has stuff like this hardwired into their eyes and brains. A hacker becomes literally invisible by editing his image out of other people's vision.
I've ordered my glasses already...