I recently heard that DirectTV is now offering a channel that provides a direct feed from a satellite of views of the Earth from orbit. This means that the channel offers a continuous experience of the Overview Effect.
This is an idea that has been suggested to me since I first wrote my book and began talking about it. It is also an idea that comes close to something Al Gore proposed when he was vice president. I think it's a major step in the process of disseminating the Effect, and I'm going to look into it further.
More later on this development.