Wait, what? So, the Camera and Battery have not undergone any improvements since the 3.5 jack was invented? We're not even having the same conversation. But thanks.
Coachingguy
No he's all hyperbole and vitriol. Most people just ignore him from the few replies I've seen.
I look forward to the "I told you so" when Apple releases an iPhone with no internal power supply or image-capturing hardware.
But let's look to this absurd hyperbole, which upon reflection isn't so far fetched.
The premise: Apple is going 100% wireless in 3-5 years.
Step 1: Introduce a device that transfers data and communications wirelessly -- check.
Step 2: Complete independence from iTunes and a PC -- check.
Step 3: Move regular backups to the cloud, and implement direct file transfers wirelessly -- check.
Step 4: Transition headphones to wireless by dropping the headphone jack, and improving wireless headphones.
Step 5: Introduce true wireless charging without wires and mats, and remove the Lightning port.
Step 6: Allow the iPhone to receive images from any paired camera.
The reality is, the DAC and amp have effectively been moved out of the iPhone and into BT and WiFi devices already. Since wireless audio is the undisputed future of mobile consumer audio, then there's no reason not to move the burden of the DAC and amp design into the external gear which is providing the actual sound, whether wired (which days are likely numbered) or wireless. In some ways it makes headphone manufacturer's live easier since they will make just one headphone with a digital interface with or without a wireless radio.
Moving beyond the headphone, there's charging the battery. Well step one is to provide wireless power, which theoretically means the iPhone is charging whenever it's in the presence of a wireless power station. In terms of the battery size, if the iPhone is essentially receiving a stream of power all the time in most developed areas, then the battery needs not be much more than a power cache, thus reducing the volume and allowing the iPhone to be smaller. Of course there's always a need to use a phone in an area which won't have this technology available, which is where an external battery pack comes in handy. So it's not unthinkable that the power source would move outside the iPhone itself eventually (at least the bulk of it), leaving it up to the consumer to provide for their power needs beyond the norm for most customers.
Then there's the camera. I suppose we should thank our luck stars that we don't have to load film into the iPhone! But seriously, as the iPhone shrinks and becomes essentially a pocket screen to external devices such as the Watch or other wearables, the need for a built-in camera become less critical. A first step would be to allow the iPhone to be used as a view screen for cameras built-into the Watch or other wearables, or even a person's headphones, or sunglasses. Then eventually, the camera in these devices will upload directly to the cloud, so no need for local storage either. I could imagine a reality where the Watch is the new iPhone, with the iPhone now a credit card-sized device that could be unfolded to be a display that is an accessory to the watch. The camera would be in the watch, and would use that display to frame photos. Or the camera could be in the sunglasses, or a broach or necklace, or a ring, or a button on a blouse. Because once the iPhone as we know it becomes something the size of the credit card, there won't be a need for it to have a built-in camera which can be better positioned elsewhere on the body, and more convenient as well.
So yes, removing features from the iPhone may actually be progress in the long run. It allows other devices better positioned on the body and more conveniently accessed to contain the things we use most, without having to reach into our pockets all the time. Batteries may no longer be a consideration with wireless power hubs scattered throughout cities. Heck even the need for a dedicated display might go away in favor of HUD in glasses, or micro projection tools. And to think the wireless headphone is already here.