Yes, Apple must allow outside payments but still contractually demand their cut. It will be interesting to see how Apple reacts in the end.
Yes. The judge was clear in that Apple cannot control how lawfully devs communicate with their customers within their app neither act punitively if they provide alternate payment methods. Don’t think Apple can force developers to declare their in app revenue either to then bill them. How would that work, would the valued declared be exact? Also that would miss the point of the ruling. This is not merely a technical ruling.