[ale] One bluetooth connection to multiple bt headphones- done it?

[david w. millians]

I got asked by a colleague if I had any advice on how to hook up 5ish 
headphones to one bluetooth connection.

After my gut reaction of, can't be done, I remembered that they had 
added this capability to the specs. This was new enough though that I 
wanted to know if anybody had actually done this, and could say what 
hardware it worked with- bt adapter and headphones.

This was specifically on windows, alas, but I just want to know what 
it'll work with period as a starting point.

Thanks,
David