Old movie and television cams with three revolving lenses on a turret ? We've even got something vaguely reminiscent today with the zeiss exo lens !
The 7 has a new camera: f1.8 v f2.2 and a further element in the wide-angle lens, no knowledge about the sensor. Whether the 2 lens will be the killer atttraction I do not know - that it's only available on the 'plus' is a negative from my pov - although the pre-orders, surprisingly, look to be favouring it by a 2:1 margin
More interestingly is the imminent arrival of iOS10 (today). RAW finally comes to the iPhone, and not just the 7 but also as far back as the 5s (in .dng format) IF
the 'word' is accurate. I'll be testing it on my venerable 5s asap.
From a personal pov, the 7 form factor was, and is, the ultimate 'always-with-you' p&s. I don't know whether the dual lens of the 7 plus will outweigh the inconvenience of a phablet. In my case, I suspect not.
A few links to the first 7 images:http://www.si.com/nfl/photo/2016/09/11/iphone-7-plus-sneak-preview-photos
compared to last years 6shttps://www.gottabemobile.com/2015/09/28/nfl-photographer-shoots-game-on-iphone-6s-plus/
so, in-app LrM camera now supports DNG but only
on iOS10 (reasonable) and
a device that has a 12MP camera (uh huh!) - so RAW only on the 7 and the 6s