Just a quick aside as someone who used to work in Nokia. The reason Nokia failed to produce compelling products: arrogance, laziness by the symbian developer teams, piss poor control of user testing (in the end as a test user of pre release phones I eventually gave up as I got sick of what I saw as real errors being marked as 'as specified' or the more brutal 'ignored'.

Nokia has become full of dead wood engineers who are waiting around for their 15 year renewal option when they can take voluntary resignation and coin in 15 months of pay. Nokia became like a socialist model of a country where 'good enough' became an accepted pass criteria for product launch. Nokia finland is strangled by union control - Elops life is going to be real hard getting rid of the cruft.
Symbian OS was known for being the thing that would eventually kill Nokia - and lo its come to pass. QT was killed by it as symbian is the OS that was holding up its release to the outside world. Maemo and linux already had QT grounding - all the qt r+d time was sucked up by the pile of fail that is that POS OS.
I'm off to android now..