I just read a review of one of Logitech's recent product called "Squeezebox." Despite its horrible price (I mean, compared to its ability), this product shows a vision that many IT people have been working on since late 1990s.
Stream media at home? Yes, and I have heard about this since college and the next will be to control your home appliances through a control board. I am sure that Apple is working on this at some of its labs. Let's wait and see who's on top of who.