Dont know about YunOS, will it replace the FlymeOS or is it some extra option.
Yun seems to mean cloud, from what i read the OS cames orginally from Alibaba named AliyunOS.
Its also hard to get some info on it. On Wikipedia it says its a linux distribution with parts (frameworks) of Android. Basicly Android is also Linux.
Its also said Apps are stored in cloud not on the phone.
What happened to Ubuntu Phone/Touch by the way ?
YunOS will defenitly be an option.
Ubuntu got postponed, which I can understand. It still doesn’t works battery efficient and also misses many apps.
Seeing it from a business point (like Meizu does) it still needs work and so it wouldn’t be a good investment (if you want money quickly).