Why do you assume there is no demand for $50 phone outside China ? Cheap phones are in huge demands in developing countries such as India and Indonesia where per capita income are still very low compared to developed countries such as US and Western Europe.
If there is a 50$ smartphone with decent build quality and reasonable user experience there would be market in the developed world as a second/backup phone. I would gladly buy one for backup. But the problem is that these devices, even though may be functional, lacks in build quality and UI, which makes it a pain to use them after using iOS or Samsung devices.
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.