At his GCDC lecture, Silicon Knights' Denis Dyack presented his case that with an unsustainable current business model, a 'one console future' was not just possible, but probable as early as the 'next round of hardware' -- describing how the shift would be good for both creators and consumers.
In today's monopolistic model, three proprietary hardware manufacturers have gone in three different directions: the PS3 with its Cell processor, the Xbox 360 with its 3 CPUs and Xbox Live, and the Wii, with its 'socialized interface hardware.'