yesterday in the french section I submited an idea that I also want to explain here because there is no reason not to do that.
My idea is simple and begin with an observation that I recently made: Today it's easy to listen all the music with services like spotify or deezer. It's also easy to listen good quality music with Hifi. But it's not very simple to listen all music of spotify for example on hifi system.
There are some solutions :
6 of them : http://www.simpleeditions.com/8001/how-to-stream-spotify-wirelessly-to-your-stereo
Plus Sonos system : http://www.sonos.com/
But as you can see, none of those solution is perfect. Either it's not compatible with good quality music or it's too expensive (Sonos).
I think that it could be interesting to make an open source project in order to build a system to set-up an home wireless musical network, like Sonos.
You could first define a protocol, that way everybody could work on a custom receiver or emitter.
Using arduino this project could allow to listen music from spotify without PC being directly linked to the internet box.
This kind of project needs a lot of different competences : Hardware, software, smartphone application (for command), design...
I hope to find people interested in this project. Please comment this topic or contact me directly.
PS: excuse me for grammatical mistakes