I see nanotechnology, biotech, and superconducting tech exploding exponentially in the near future.. Everything will be different, in terms of how people manipulate their environment, how they interact with one another, and how they experience reality itself.
I think the internet will be a whole different animal at that point, and the effect it's already having on human society will increase exponentially as well.
People will be able to "jack in" to a virtual world, wirelessly probably, and most of them will probably never come out. Interfaces like force-feedback sticks, Wii, and Track IR will be thought of the same way we now think of the telegraph: quaint, primitive stuff.
Somebody will have to mind the store, of course... that will be left to the lower tiers of society, or maybe robots. It'll be just like the Eloi and the Morlocks, and of course it will collapse eventually... although it could go on for millenia, especially if the machines are given enough autonomy to take over, a la the Matrix.
I just hope it all happens after I'm dead...
