Is Apple's App Store a monopoly?

Is Apple's App Store a mall or the equivalent of a sole proprietor shop selling unique wares? That question appears to be at the heart of a now revived lawsuit against Apple, Pepper et al v. Apple Inc. In it, a group pf plaintiffs claims that Apple's insistence on selling all iPhone apps through the App Store and not allowing developers to sell iOS apps through other channels is anti-competitive and artificially inflating prices. SEE ALSO: 9 fun iPhone text message tips and tricks The lawsuit is