Software platform developers do not have insight into the consequences of architectural decisions made in regards to openness, while openness determines whether and how third-party developers adopt the software platform. For mobile communication devices, however, the adoption by third-party developers is essential for the growth of an ecosystem, which has proven to be a successful strategy for
... [Show full abstract] mobile communication device ecosystems. In this research the openness and architectures of five mobile platforms are compared, to provide further insight into successful openness strategies for software ecosystem growth.