30%, the long tail and a future of serialized content
Except Apple has announced that they want to tax each subscription made via the iPad at 30%. Yes, it's a tax, because what it does is dramatically decrease the incremental revenue from each subscriber. An intelligent publisher only has two choices: raise the price (punishing the reader and further cutting down readership) or make it free and hope for mass (see my point above about the infinite newsstand). When you make it free, it's all about the ads, and if you don't reach tens or hundreds of thousands of subscribers, you'll fail.