This sounds like a ton of work to do what FM already does reasonably well; if anything I'd like to see the amount of funding, variety, and _bandwidth_ for public radio increased, hopefully breaking some of clear channel's grip. I know everyone likes technologically advanced solutions, but honestly for anything that isn't straight broadcast, such as your suggestion above, the amount of work needed to workably implement it on the surface appears huge; why replace what just works with something else that doesn't have a immediately distinct advantage?