Sony Reader. Amazon Kindle. Rhapsody. In the App Store, they all have (or would have, if Sony's app had been approved) one thing in common: they're represented by free apps that serve as profitable storefronts to their digital content. They all pay their $99/year entrance fee to the App Store, but once in, they're not sharing their extensive off-store revenue systems with Apple.
Apple provides the infrastructure, the delivery mechanism, and the customer support for millions of free applications. And now, at least for those free apps that lead to digital goods sales, Apple is asking for a
