downloadable application development software; downloadable application programming interface (API) software; downloadable computer software for software development to create photo and video experiences using a mobile phone camera application; downloadable mobile application development software for integrating with software-enabled hardware accessories; downloadable application development software for tracking subjects in live video; downloadable computer software for certifying and testing software-enabled hardware accessories; computer hardware; motorized stands and gimbals for handheld digital devices, namely, smartphones