en de reactie van Marco Arment

Over de toekomst van Twitter:

A big question is whether Twitter will even give third-party apps the chance to display their “consistent experience” before cutting them off. I’m guessing they won’t.

Maybe the reason promoted tweets still don’t show up in the API, and therefore still aren’t displayed by third-party clients, is that Twitter never had any intention of monetizing the timeline outside of their official clients, because there won’t be any more third-party clients soon.