Apple has temporarily ceased filling ad slots in iPad apps for children with advertisements from advertisers that participate in iAd, reports "Macstories" (http://macte.ch/nh4Dt).

Mike Zornek, developer of the free Dex app for iPhone and iPod touch (a Pokèmon browser application), tells "Macstories" that he received an email from the iAd Network Support team. The letter says iAds may not be displayed anymore in apps targeted to “young children” because of the advertisers’ preference to not show ads to this particular audience.

"We periodically review the apps in the iAd Network to ensure that all apps receiving ads are aligned with the needs of our advertisers," the letter reads. "Currently, our advertisers prefer that their advertising not appear in applications that are targeted for users that are young children, since their products are not targeted at that audience."

iAds combine the emotion of TV advertising with the interactivity of Internet advertising, according to Apple CEO Steve Jobs. He adds that iAd -- which is built into iOS 4and higher -- allows users to stay within their app while engaging with the ad, even while watching a video, playing a game or using in-ad purchase to download an app or buy iTunes content.

Developers who join the iAd Network can incorporate a variety of advertising formats into their apps. Apple will sell and serve the ads, and developers will receive 60% of the iAd Network revenue, which is paid via iTunes Connect. iAds require iOS 4.x.