I've gone sort of roundabout. Had an iPhone, ended up replacing it with a Droid. About the same time, I was gifted an iPad. Neither, however, impacted my decision to pick up a macbook. That was based solely on intended use (music recording), where I didn't feel that similar Windows books gave me the same advantages. It won't likely affect my next phone purchase, barring a philosophical change from Cupertino.

That said, I may also be abnormal, in that I hate iTunes, and use other programs instead.