I had a Sony Walkman, very expensive one, which had a jack with three divisions, not just two; In this way; in the same cable of the earbuds there were the two stereo channels and a 3data3 channel or 3control3 channel to play; pause; forward; backward; volume…
It was quite cool…
It shouldn’t be so difficult to get on a digital device…
And I would shurely pay more for such capabilities.
I guess that evrything depend on how often people need to take Fuze on their hands to enter the menu and do things.