Specifically, I have the newest headphones which were released with the iPhone5, however if you have an answer for any of the headphones they released, this may be a good place to centralize the information.
I've found I'm constantly not double-pressing fast enough to cause the phone to go to the next track while listening to music, not to mention if I want to go back (three-presses). I would love to be able to increase the allowed delay between presses so I don't constantly pause/un-pause my music instead of going to the next song.