I've read a huge stumbling block in the US is how to distribute the fiber signals once they get into an apartment building, supposedly it's just being developed (don't know the details). Korea seems to have gotten over that hurdle?

I read that the 'fat pipe' will be used in two ways; the telcos want to start to offering movies on demand (content on demand they call it), and the high bandwidth will serve the equivalent purpose to carry a cable TV system's television video signals right now, only with the ability to be of higher quality. The second way is that operating full time servers will be legit under the T&C (it's not legit with Comcast HSI and most basic home DSL arrangements) and so people will be able to host their own servers. I'm not really sure what will be the intended consequence here.