A patent agreement between Apple and HTC forbids the Taiwanese company from making and selling mobile devices that copy what is described as the 'Distinctive Apple User Experience," according to a redacted version of the agreement filed in a California court. The 'slide to unlock' feature at the bottom of the screen of some Apple devices, for example, could qualify as a distinctive Apple user experience, while the 'pinch to zoom' functionality does not, and will not be considered a 'cloned feature,' according to the document.