My Cerulleans button does pause song with one click but does NOT advance with dble click. The volume does not control the ipod but it does control the headphones. Incoming/Outgoing calls do fade out the music and then it returns once finished. Sound is as good as can be expected for a bluetooth headset/headphone.
Downside is when driving you have one piece hanging around your neck and it has tendancy to want to pull the other side out of your ear. Other that no problems.
Okay thanks for clearing that up. I think we need to wait a bit then for 3rd party devices that provides full support. Or perhaps Apple will provide one soon.