They have been doing this with headphones for a while now. I became acquainted with this when I had some headphones with play/pause, volume controls, and a mic

They have been doing this with headphones for a while now. I became acquainted with this when I had some headphones with play/pause, volume controls, and a mic for my iPhone 4S. After the 4S, I bought an Android phone and was sad to learn the volume controls over the 3.5mm connector were Apple proprietary and the only thing I could do with my $150 Klipsh 'phones as play/pause or answer calls - the volume rocker becoming totally useless.