Apple App Store review process hits a traffic jam

Whatever the task, there's an app for that… Except for the process of reviewing those apps, apparently. There are a growing number of reports on Apple's developer forums that developers are waiting a long time for their apps to be reviewed before they’re listed on the App Store. Subjects include 'Unusually long Apple 'waiting for review' time", "Stuck in Waiting for Review for about 3 weeks", "Stuck in 'Waiting for Review' since October 8", and so on, including a "Waiting for Review Megathread."