Lumiaman, I am more Lumiaman than you are

Symbian is a much better mobile OS than anything else on the planet. What failed was that Nokia didn't realize that common people wanted something else than "feature phones" and "communicators". Hence, they didn't do what they needed to do with the OS. At the same time they failed to develop Maemo into a killer tablet OS. They failed to develop Ovi into something that people could use. When they realized all their failures, they failed to hire a real CEO. They hired a MS bean-counter that has his head stuck in the last century regarding how to run a top tech firm in the internet age, a CEO that can't keep more than one thought in his head at any current time.