This is brilliant. Essentially the entire line of iOS devices up to this point have been loss leaders for building an entrenched advertising system - but without the loss!
I can see it going a lot of ways.
"iPhone 6: $400.00. iPhone 6 with no ads $600.00."
"Pay only pennies a day to skip ads."
"Apple: Pay up advertiser, we showed your ad 1 gajillion times. Advertiser: Show me the numbers! Apple: Here's some we made up." Works for Facebook.
"Put yourself in an ad for your favorite product. Take a selfie with this app!" iAds + JibJab.
Of course, you could always just install an app that disables... Ahhh, Apple owns the app store, too.