Last week I saw that commercial in which the guy asks his car for a facebook update, and I thought: the 21st century is going to be strange.
I'm only 25, but the way tech is going disinterests me more and more. Why do we want to be THAT connected? Do we really need to be SO stimulated, CONSTANTLY? I'll just go sit under a tree and listen to the breeze, thank you, and maybe in an hour I'll start reading my book. My REAL book, my book with a leather cover and rich, textured pages that bear the smell of history.
I think what you describe there will be one kind of luxury in the future where people will brag about having the time to just disconnect and read a real book.
I know people (mainly heavy business types) who are really excited about the times when they can turn off their phone and set an away notice in their mail account and just not be available to anybody.. a bit scary but that's how it is even today.
I think the next big step technologically and socially would be a man/machine interface.. some kind of direct human brain control over machines via a chip or some other device carried or implanted and that let's you use technology with a simple thought.
Some SF books and shows have already touched on that and i think it would change society the way cellphones have changed it.