Along with the launch of the iPad, Apple launched iAds.  With fears kind of like the movie the Minority Report, iAds from your iApps that can integrated into it, which will have privacy concerns if it has location services.   It should excite the advertising world, as it suits current industry direction of introducing relevant content with seemless placement and too, how they want to communicate with consumers..  I guess huge reach Apps and Apps with cult following, Size and Audience, will get the revenue.