News aggregator Digg has launched an update to its iOS app, bringing new features such as a “Popular” section that sorts feeds by popularity, as well as a setting to see only unread items in feed views. The update also adds integration with article formatting service Readability, as well as the ability to delete feeds and folders directly from the app. From Digg's official blog:Our new iOS app is going live in the Apple App Store today. Here’s what’s new: - We’ve added the “Popular” section to Digg Reader, enabling you to sort any of your feeds in order of their popularity across the social web. - You can now choose to see only unr
