I'd LOVE this.
I also want something else that I wonder if I could dummy up myself. I want to change certain phone behaviors based on whether or not a given Bluetooth device is connected.
My use case is "when I'm on my motorcycle, connected to headset audio, I want (a) the phone to read me texts and (b) to turn on navigation audio." I do not want either of these things UNLESS I'm on the motorcycle with the Cardo turned on.