Apple of the last ten to twelve years is likely to go down as one of the best marketing companies in history. The company is confident enough of its own ads, for instance, to post them on its Web site. It turns out that Apple is even proud enough of the ads developed for and by third-party companies for its iAd network to post an app on the App Store called iAd Gallery with the sole purpose of letting you see all of those current adds.

As the saying goes, there’s an app for that, even if it’s to watch advertising.

Behold the iAd Gallery! Spin the wheel, view an ad, make some money for Apple!

Apple’s marketing brilliance knows no bounds. Not only does this app show off how different and cool Apple’s iAds are, it’s also making the company money. Viewing an ad most likely counts as an ad impression, and since the app’s sole raison d’être is to view those apps, advertisers are getting what they’re paying for, focused eyeballs.

In any event, the app is a free download, and it’s available for iPhone and iPod touch. It will play on your iPad or iPad 2, as well, but in emulation mode.