@julian @pfefferle @evan @evan @pfefferle It's headless but honestly I don't see how that could help. Vendor-specific RESTful APIs won because they are easier to understand and easier to implement. In order to be competitive, standard C2S needs to provide something that can't be achieved with RESTful APIs.
I think the answer is FEP-ae97, which enables rich offline-first clients and data portability.