While some publishers have bemoaned Apple's new rules regarding subscription based content, certain developers are starting to feel the pinch as well. Arc90, developer of the Readability Web service, has taken Apple to task for rejecting Readability's native iOS client on the grounds that it doesn't abide by the new subscription rules. Keyone Productions, maker of TinyGrab, has also decided to not even finish developing its iOS app, claiming Apple's rules are so confounding that it is impossible for the company to make an "acceptable" app.