Apple's iOS Subscription Services

Now that Apple is开发者_Python百科 allowing developers to create "subscription-based services," how do we actually implement them? Is it the same as in-app purchases, just recurring? Regardless of the feelings about the 30% cut for services which Apple doesn't actually supply, what are the technical hurdles?

Apple has a resources page up for it. In a nutshell as far as programming it is concerned, it directs developers to the In-App Purchase Programming Guide, which explains how to do it.