Apple's payment changes are a bigger deal than I thought

From "Amazon now has a ‘Get book’ button in its iOS Kindle app" on theverge.com : Apple has appealed the decision, but is also complying with it in the interim, prompting several companies to announce app updates making it easier for users to pay for subscriptions and services. That now includes Amazon’s iOS Kindle app. Contrary to prior limitations, there is now a prominent orange “Get book”…