In spite of attempts by Google and others, Apple's iOS App Store should still represent the majority of mobile app revenue three years from now, IHS iSuppli estimated on Tuesday. Apple's portal was expected to grab 76 percent of app revenue in 2011, or $2.91 billion, but would still have 60 percent of that by 2014. Android Market was predicted to be quadrupling its share this year, but at $425.36 million would still not be moving fast enough to take the top spot.