In advance of a June 30 deadline that would have potentially kicked all major third-party ereading apps from the likes of Amazon, Nook and Kobo out of the Apple App Store, the computer company has revised their rules to provide at least some leeway. The Apple rule that caused controversy earlier this year–beginning with the rejection of a proposed ereader app from Sony, which has still yet to launch such a feature–was a requirement that any content sold outside of approved apps must also be offered for purchase through Apple’s in-app purchasing program, “at the same price or less than […]