Bluetooth source audio

Hi dudes,

Got an LMS system setup in my house, running 4 zones on 3 raspberry pi's. Wondering if anyone knows of a solution that would allow me to push bluetooth audio out from my laptop, phone, etc to my LMS server pi (which would have a bluetooth dongle).

I know it _can_ be done (in theory only) as I currently can do this in my car from iPhone to asus eee car-pc (running windows xp).

Cheers
Ste