Let the hive mind of Engadget get that for you.
"I am looking for a device that will stream sound from one source to several recipients. For example, I want to stream sound from my TV or stereo to my phone or MP3 player that has radio and Bluetooth capabilities. I have looked into radio transmitters and they seem like a decent choice, but I can't find one that uses external power (USB or from the plug) and I would want one with a transmit range of around 50 meters. Thanks!"
Actually Russound already has an iPod dock desk mount style as opposed to the iPort's patented (read don't copy or we can sue) in wall docking station.
The Russound iBridge works with RNET systems and displays now playing information on any keypad in the system - it is very much more convenient than buying a set of headphone to RCA cables to a receiver and to use that analogy the RNET system would be like having a stereo receiver in every room of your house that shares the same sources but can select them indepenently of the other rooms. Oh and the only thing in each room is a set of in wall speakers and a nice looking keypad that displays what's on your iPod.