'Posterity' is a stretch? Snapchat would dispute that.
In fact, if a phone really wanted to take good pictures (and not just market 'megapixels') they'd have focus, light balance, shutter speed controls. About all they can do is take still portraits.
> if a phone really wanted to take good pictures (and not just market 'megapixels') they'd have focus, light balance, shutter speed controls
Any high-end smartphone can manually control the focus, white balance, shutter speed and shoot RAW. On the iPhone you need a third-party app to access it, but plenty of Android devices include that in their default camera.
