The technical process of digitizing analogue data into digital bit-streams and the associated socio-technical processes of digitalisation has yet to fully reveal their disruptive potentials – yet researchers and practitioners alike must comprehend these phenomena. The associated digital innovation brings a number of research themes to the foreground and the aim of this talk is to discuss a couple of these themes as a way of stimulating the debate on how research can provide useful insights. The study of digital platforms has a rich academic heritage to draw from, e.g., industrial innovation management, telecommunications, etc. These separate yet related bodies of research have greatly helped the formulation of the platform and ecosystem concepts. However, it is now essential that we also consider our core understanding of how digital platforms are not merely exemplars of other kind of platforms. Special focus will be drawn to the dynamic innovation relationships on digital platforms exemplified through a large-scale study of innovation of boundary resources on Apple’s iOS.