Nokia was once the untouchably dominant force within the mobile industry, but its Symbian OS was gradually eclipsed by iOS and Android, leaving the Finnish outfit with no choice but to hop on the back of Redmond-based Microsoft and its fledgling Windows Phone OS. In all fairness to Nokia, it has gone pretty gung-ho hitherto, putting much effort into the flagship Lumia series which has in turn yielded an army of fans – most notably Apple’s co-founder Steve Wozniak.