cocoa touch - Implementing iOS Maps style page curl gesture interactions

Question

A bunch of people are interested in implementing the page curl modal transition in iOS like that found in the native Maps app - see here, here and here - however the question doesn't seem to have been fully answered. So:

Is it possible to display a page-curl modal beneath a main view as is currently the case in Maps on iOS 6? I wish to implement the segue via "curling" the top view back with a finger, giving the appearance of direct interaction with the curl, as is the case with iBooks in the same versions of iOS.

Implementing the segue itself (as in a partial curl transition) is not the problem - adding the gesture interaction (with dynamic partial peeling) is.

Answer 1

This piece of code will do the trick: XBPageCurl