It's so so hard to imagine Amazon actually building any useful or interesting ecosystem. They won't open source these works. They probably won't talk about them. Another black knight contender in the tech world. There'll end up having to be some kind of sdk, some outreach to devs, but most of this is going to be a huge black box that no one can read anything about. A dark OS.

Maybe just the modern Nintendo strategy of having no third party software is enough, works out. Maybe the big mainstreams apps will all sign up.