I don’t usually read The Register, but this article is exceptionally well-written and thoroughly researched. It includes thoughts by Mark Wilcox, a mobile developer and author that has worked for both Nokia and the Symbian Foundation.
The UX matters: it’s the first thing potential customers see when a friend passes them their new phone in the pub. A well-designed UX is consistent, forgiving and rewarding; Nokia’s user experience was inconsistent, unforgiving and hostile. Nokia’s designers honed in with meticulous attention to the wrong detail. Apple’s iPhoneOS UI had some unusual features – smooth graphics that played transitions at 60-frames-per-second, thanks to a dedicated graphics chip. Instead of redesigning the entire UX, Nokia acquired expensive professional-grade video cameras to determine the animation speed, and having confirmed that yes, it was 60fps, tried to recreate the transitions.