With the sunset of UDID this coming week, a major barrier to mobile ads will fall. The new system for iOS will benefit advertisers while still protecting consumers, and will become a revenue juggernaut for Apple.
Other apps that won’t make the cut: those that are not optimized for the iPhone 5 or Retina displays.
The transition from advertisers, publishers and ad networks using UDIDs to target their ads to Apple’s expressly designed-for-them Identifier for Advertisers, is going slowly. The reason? A combination of a bug, bad timing, and a slow-moving industry.