Apple has released iAd Gallery, an app for nothing but iAds. So far, iAds seem to be very successful because they are interactive, and they don't take users out of the app. Some users may want to browse all the ads so Apple released this app with no content, just ads.

"The iAd Gallery is a celebration of advertising, featuring iAd campaigns from some of the world’s best brands and their advertising agencies. The iAd Gallery gives you easy access to a selection of the fun and informative ads that have run in some of your favorite apps. Use the Browse feature to discover ads you haven’t seen, or to find those you want to see again. Even lets you tag your favorites to a Loved section that’s all your own."

Check out the App Store for the app.