It seems that most people who are criticising this don't understand the concept of a light field camera.
As said: THIS.
Why would Apple take on the photography industry? because the photography industry is absolutely stuck in a set of specifications & paradigms, and there are emerging technologies that add whole new dimensions to the subject.
First, of course, is the light field camera's superior point-and-shoot ability. Point, shoot. No focusing (tricky manual or come-on-not-there-focus-on-what-I-want-already automatic), no catch-all sacrifice-something fixed-focus ... focus-later fits right in with Apple's commitment to thrilling users with attention to miniscule detail. Take picture, slide finger to focus, happy user.
Next is...not sure. Just because we don't see it now doesn't mean something awesome isn't there. Methinks there is a lot more capability within the light field design than anyone realizes. How do you "photoshop" a light field image? the answer will lead to "woah, that means you can do THIS? Wow!" That the light field refocus algorithm operates in real time raises the question of what else can be done that (for now) takes far more processing time/power.
What of "photosynth" technologies? Just leave the camera running, and stitch together a 3D model of everything it sees from every angle it passes thru. Selling a widget on eBay? just walk around it with your camera, and it generates a "virtual cinema" (see
The Matrix: Reloaded opening scene) dynamic view.
And rattling in the back of my head is the possibilities of an ultra-resolution "phased array" camera, resolution so high it takes light field imaging to a new level. Think full (not stereoscopic) 3D akin to holography.
But no. According to most, would be stupid for Apple to take on photography. We've done everything we can with imaging, nothing more to do. Just like TV. And cell phones.