Fiber. Gotta love it. Kinda tough to use from a boat or when camping on a mountaintop, though. RF still rules there.
My own oppinion is that the future will be fiber run all the way to the house for home service and fiber run to wireless relay stations for laptops, cars and cellphones. I also think that phone, TV and internet service will become so intertwined as to be indistinguishable. You might buy an entertainment computer for your TV/moniter that would download programs off the net rather than pick them up as a broadcast or a communications computer that would essentially be a jacked up telephone that also operated on the net. Of course the entertainment or communications computer could still do your regular computing functions as well, they just wouldn't be built specifically for that purpose.