Many people here know I'm a proponent of keeping the headphone port.
However my response question to that question is "What will it offer without it?".
If nothing, then I feel they should keep it. If its something I feel worthy of its omission then ditch it. Easy as that.
That's how I feel as well. For the better part of a year it seems I have been asking those who want to lose the jack what the benefit will be. In all this time I only get the following three responses:
1. The headphone jack is "old tech" and it's time to move on.
My thoughts: The "new tech" of lightning audio and wireless audio are already supported by current iPhones and obviously don't need the removal of the headphone jack to implement. Therefore, this is not a gain by any definition.
2. It will make the phone thinner.
My thoughts: In spite of Apple's apparent obsession, increased thinness seems to be the last thing that anyone thinks the iPhone needs! They've gotten so thin already that they needed stronger aluminum to keep them from bending!
3. It will allow the phone to be waterproof.
My thoughts: Putting aside my personal indifference regarding waterproofing (sure, it's a great feature to have and I'll gladly accept it, but I've never had a phone suffer water damage and I personally have no need to use my phone in situations where it's likely to), other manufacturers have managed to achieve impressive water resistance while maintaining a headphone jack, so why can't Apple?