Users have been calling for Apple to implement the popular 'pull-to-refresh' feature into Mail and other native iOS apps for quite some time now. The function, which is found in Tweetbot and several other third-party applications, allows you to refresh the on-screen information by pulling down on the app's UI.
But judging by this report from designer Dustin Curtis, we won't be seeing the easy refresh option integrated into native iOS apps anytime soon. Why? Well apparently Twitter owns the patent to it...