Well here's a feature request:
Three checkboxes to toggle the speakers, headphones, and BT-HSP outputs, and maybe separate analog / BT volume sliders (when both of them are enabled). (Or just leave BT volume control up to the buttons on the headset, and keep one slider, which controls analog output except when only BT is in use...)

For the BT headset, I need to enable the BTM and BT controls in alsamixer.
For any analog output, I need EACPCM; for speakers I need Speaker Amplifier, and for the phone jack, I need Headset Amplifier.

Right now, I can make this work manually with gnome-alsamixer, and use it to control the analog outputs with PCM and DMA sliders, while I use either the BT headset buttons or the ad-bk-sb-applet to control the headset's volume.

I'm probably gonna script this up with amixer, for now, but it'd seem a nice addition to the applet. (In case anyone's wondering, I haven't built gnome-alsamixer, amixer, or anything interesting; just using Debian...)

What do you think: useful addition, or feeping creaturism?


Oh, and regarding:
It is that, which, BTW, causes great havoc with BT headsets... If you use one, you're better off not installing FM radio. (I just feel this warning should always be tossed in when mentioning that particular applet.)