Right, but the fact is you are now inventing buttons, double press home, short press home, etc, are not hardware buttons, so that would be a software implementation as well. When we are so limited with buttons, do you really feel the need for dedicated volume buttons? I mean Android phones have about 6 hardware buttons + volume buttons, since we're limited to 4 including the volume buttons I feel like we should prioritise. Don't most of us have volume buttons on our headsets now anyway, those could control volume instead as we're unlikely to listen to music without a headset.
I opened the poll up so people can change their cast votes of they want to. I think you all voted hastily without considering the options.
The software buttons are in the drop-down status menu, takes about 3 seconds to invoke just one of them if you don't have graphics acceleration.