I just implemented iad and it seems that they only have landscape and portrait advertising banners. But the ad displays full screen. As soon as they click on it. It accepts the application and allows you to pause the pause.
Then you will know when this is done so that you can renew anything. But again, advertising banners are only a Landscape or a Portrait.
The full screen ipad iad is listed in the programming guide.
IAd Programming Guide
Running the tutorial will allow you to get the implementation pretty quickly. But you should also read the manual.
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