I see nobody addressed the person who mentioned aux in for car stereo connectivity. My old vehicle didn't have BT stereo, so I used an aux-in for audio and charged via the Lightning portal so I could use gps. This is probably the biggest use case for charging and listening to music while using gps at the same time. Now my jeep lets me use BT so that won't be an issue, but we travel a lot and use rental cars, so when we are doing that in the future, that is no longer possible. This totally puts any future iPhones out of consideration for me, I can't be in the middle of nowhere and have my gps fail because the phone dies.
By dropping the jack, they have removed something without truly adding anything of value. I guess they have stereo speakers now, but shoot, I remember when htc had their boomsound speakers how dismissive Apple fans were at stereo on a phone. Course now it's a bold move fwd.
I get that Apple can't satisfy all constituents, but this change is going to push me back to android. I doubt I am alone. And I was all ready to upgrade to the plus.