Is it possible to stream music TO an iPod touch via bluetooth? Say you have the iPod connected to a dock to your home stereo.  Is it possible to pair another bluetooth enabled device with it and stream music to the iPod?  

In effect making the iPod like those Bluetooth adapters out there that add Bluetooth capability to the iPod dock.
If you are sending audio from a Mac or PC this is very doable using the Rogue Amoeba product AirFoil:


http://www.rogueamoeba.com/airfoil/speakers.php


It doesn't go over bluetooth, but WiFi similar to AirPlay - but it might be the closest you can get without jailbreaking iOS. I don't know of a specific jailbreak mod, but it's not something iOS/OS X does natively.

You might also be in the situation of these other users:


iPhone as &#39;headphones&#39; for computer
Connect iphone to multiple output devices to play music


For sending bluetooth audio to a home receiver, I'd spend the money for a dedicated device like Belkin's as it remembers up to 6 paired devices and uses wall power. It's quite tiny even though the image below is large.


http://www.amazon.com/Belkin-Stream-Bluetooth-Music-Receiver/dp/B00IL7BWGA/