One way to think of this is to think of RSS in terms of comand. Each command or feature in the user experience is wrapped into a meta language of context. This language of context will drive the use cases and the rendering. We do not only separate funtion and presentation we make function and context interdependant.

With such an operating system we would tear down classic application boundaries: like calling, camera, idle, and calendar into a fluid dynamic environment. For example if the user is on a call and the lens cap is opened, one could immediately create an video link between the user and the remote party and enable the important ”see what I see” use case. The user experience needs to encourage the switching of modes in conversations. The devices need to support: See, Look, here, where, and touch types of tasks, typical in any real life conversation. It would become vitality rich.

I think this kind of device and system could be a massive hit in emerging markets where they choose a mobile before they buy a computer.