One of the main features of iOS 11 is the so-called "drag and drop", which allows iPad owners to easily and quickly move content between applications. Many iPhone users with a 5.5-inch screen wondered why this feature was not implemented for smartphones, and Apple seems to have not quite figured it out yet.
Developer Steven Smith found in the iOS file system a hidden hint of the "drag and drop" function in the iPhone, so in Cupertino they still tested this innovation. Moreover, he even managed to launch a new function on the iPhone with the help of an emulator – it turned out that it works perfectly on a smartphone – just like on an iPad.
Interprocess dragon on the iPhone is gated by the BOOL 'CancelOnDeactivationPhone' in the UIKit prefs (and the aforementioned)
– Steve T-S (@stroughtonsmith)
Smith noted that any iPhone owner who saw "drag and drop" at work wants to acquire such a function. What prevents Apple from giving users of its smartphones the desired functionality? Two options are possible here: either the company thinks that the owners of the iPhone do not need it, or … have reserved a hidden "chip" to represent it with the new generation of iPhone.
So obviously we should wait until September – Apple, apparently, revealed not all of its cards on WWDC 2017.