Best of all would be an open API to the eWeLink cloud. I could write my own application doing exactly what I need it to do, without flashing the Sonoff with custom firmware and without setting up my own cloud services. I would only need to register the device, get the API keys from the cloud and then communicate to my Sonoff devices via cloud. I know that creating such API is a lot of work, but think of all the possibilities!
Any feedback from support / ITEAD about exposing some API's for us to use? I believe this would greatly increase the value and freedom of using Sonoff devices.