I wasn't aware of that, thanks for the link. The only thing I can't understand is how Apple can't be making a fortune on the App Store - Not only are they making 30% of a huge number of sales, they're also charging $99 per-year for developers to access the App Store. In addition, with the Mac App store likely to have apps costing much more than iOS apps, that 30% cut stands to make them far more.
Either they're finding ways to disguise the App store profits, or they're very inefficient because with the 30% cut and $99/yr fees, it's hard to imagine how that can't amount to a significant profit, even after you take the costs of storage/distribution/billing out of the equation.
Either they're finding ways to disguise the App store profits, or they're very inefficient because with the 30% cut and $99/yr fees, it's hard to imagine how that can't amount to a significant profit, even after you take the costs of storage/distribution/billing out of the equation.