An Open Letter to Apple | Readability Blog:
We’re obviously disappointed by this decision, and surprised by the broad language. By including “functionality, or services,” it’s clear that you intend to pursue any subscription-based apps, not merely those of services serving up content. Readability’s model is unique in that 70% of our service fees go directly to writers and publishers. If we implemented In App purchasing, your 30% cut drastically undermines a key premise of how Readability works.
Before we cool down and come to our senses, we might as well share how we’re feeling right now: we believe that your new policy smacks of greed.