Apple's unwillingness to share large amounts of consumer data is hurting its iAd business, according to Madison Avenue media buyers that spoke with AdAge. The company is said to be "downright stingy" with the information it shares, too slow at developing ad products, and "too reticent to foster relationships." According to one executive, Apple doesn't have official sales targets for its iAd business, nor does the company operate a large sales team as advertising is viewed as more of an "afterthought."Perhaps the biggest issue hindering their ad growth is that advertising is an afterthought, a blip on the balance sheet. It's still viewed by some as immaterial and potentially detrimental to the cash cows -- an ad is an impediment if it distrac
