Its the Apps Stupid!
Apart from Fanbois - who cares about the OS in the smartphone market - its Apps availability that makes a successful platform.
Android struggled not until it became refined but when it could deliver a critical mass of apps. Nowadays iOS & Android are so far ahead the only chance for anybody else is if they can successfully create an emulation environment to hijack existing apps with or without the owners permission (are you listening MS?). Only then is the mass market going to care about anything else it can deliver.
Or is this an admission that it will never get consumer acceptance - and its future is embedded in iThings where the manufacturer, not the consumer, chooses the OS to do a predefined set of tasks.