iAd is a potentially much more effective ad medium than TV, the first effectiveness study of the format suggests. Conducted by Nielsen but funded by Apple and Campbell's, the five-week analysis claims that people who saw one of Campbell's iAds were twice as likely to remember it as they were a TV spot. The Campbell's brand was recalled five times more often by iAd viewers versus people exposed to TV ads, although the actual message from an iAd was remembered just three times more.
