Apple, who never implemented the right clic mecanism on their desktop computers, now introduces it in their smartphones. Force Touch will allow to access to several options more quickly.
Instead of opening up a large window of extra controls that did not fit on the screen, as is done on the Apple Watch, Force Touch on the iPhone is designed to skip existing lists of options or button presses
It seems to be a great idea: considering the screen as a big button can really give users new chances to improve their experience with the OS. I see this coming to competitors as well.