I've been waiting for Auracast to become a thing for a while now. I really hope it will eventually become available at chaos/hacker events (#CCC, #EMF, etc) because these lecture halls often have a lot of ambient noise that I find hard to filter out. Being able to just put on headphones and listen to the audio directly from the microphone would really help.
Here is a video I found describing it (2nd half):
https://m.youtube.com/watch?v=WmSM_yCyV3U

