While moves like this will definately have a huge impact on the US Internet, in many ways the rest of the world is unaffected. I live in Canada and have no way of accessing ESPN360 content. While I have no desire to access their content, I'm sure there are others up here who would like to. They are cutting themselves off from the rest of the world.
This may be a sign of the way things go. In the future, there may be a US Internet, and an Internet for the rest of the world. I just hope Canada doesn't follow the lead of the US, the way we normally do.