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!"
i actually like ambilight a lot. for very little add on in price it does make a screen feel a lot bigger. but if they are looking for profit margins competing with visio's at walmart with 1500:1 contrast ratios they better think twice.