>To be clear, we believe you have every right to push forward such a policy. In our view, itβs your hardware and your channel and you can put forth any policy you like.
Apple's server hardware isn't the issue: Apple is asking for a 30% cut when Readability is processing and distributing content. (Maybe; I'm not sure how the Readability app specifically works. But Readability is theoretically in the same boat as Amazon, where Amazon is hosting all of the content, and Apple expects a cut because you're using an iOS device, and Apple maintains that their curator position licenses them to revenue sharing from all apps, regardless of who hosts the content.)
http://blog.readability.com/2011/02/an-open-letter-to-apple/
Plenty of other examples here:
http://www.google.com/search?&q=%22It%27s+Apple%27s+hard...