Perhaps... I happen to have an iPhone too... and I find that while Apple is truly innovative, the pace of that innovation sometimes hurts it. The iPhone 4 form factor (4 and 4S) is in dire need of a refresh (particularly screen size) and their lack of LTE is criminal (we won't get into whether AT&T is 4G or not).
Hence if Nokia can be innovative (and they've shown in the past they're perfectly capable of that) and roll out competitively priced phones they can easily gain a 4-8% of the market in less than a year. That would be huge and give them the momentum they need to thrive.