Murderdrome is a dark, bloody comic strip marked by the type of over-the-top violence that has made its genre so popular among young readers with a lot of pent-up rage. But Murderdrome has now joined the pantheon of suppressed fiction as the first digital book banished from Apple’s App Store by censors in Cupertino. Strictly speaking, what Apple banned was not a book but an application — called Comic Reader — designed to make it easy for comic book authors to publish their work on iPhones and iPod touches. But Murderdrome was the premier title, included with the app when it was submitted for Apple’s approval. Murderdrome’s most energetic defense was posted by blogger Mike Cane, who rattled off (with live links) several equally violent works of fiction published without fuss or warning on the iTunes store, including South Park, Reservoir Dogs and Lock, Stock and Two Smoking Barrels.