A model depicting competitive technoeconomics of business structures specific to mobile-platforms is developed. The underlying co-evolution of large, competing enterprises of mobile-platforms that face customer-churning due to application-preferences and pricing structures in the deregulated ambient is viewed in the perspectives of nonlinear logistic systems akin to that of biological ecosystems. Relevant considerations are decided by and embodied with several stochastically-interacting subsystems. Hence, the temporal dynamics of competition/co-evolution of known competitors in the mobile-platform market, like Android, Symbian and iPhone is depicted by a novel model posing dichotomy of prey-predator flip-flops in the market; and, an asymptotic projection of ex post computations of underlying technoeconomics into the ex ante region would correspond to futuristic forecasts on the performance of test platforms. Further, computed results are exemplified with a sample calculation and associated sensitivity details.