Here comes a nifty idea. Castiglione Morelli has designed a light bulb that contains a speaker. I don’t think the bulb is operational. But this would allow anyone to pipe music through their home very easily.
The only problem is you wouldn’t be able to see anything! Anyway, it would be nice if the bulbs were speakers and light. Maybe LEDs would allow for the type of power needs of both devices residing in a single unit. You would simply at a bluetooth attachment to any ipod to allow it to stream the music to the lights, er speakers. No idea if this will move beyond concept, and hence no idea of potential pricing.
If, however, you want something now, Klipsch (highly recommended!) produce LightSpeaker – it’s awesome and expensive.