I doubt it since Apple actually go out of their way to ensure Nokia phones are supported.
But then Nokia don't try and piggy back on iTunes I suppose.
Also, Apple will probably (continue to) take smartphone share away from Nokia, but they probably are not likely to be able to take overall share from them. Certainly Motorola will not. Nokia might put Android on their phones someday, but one way or another they're likely to continue to be around for some time.