I think it's an interesting OS to watch for. I can see similarities with the web. The web seemed to turn into a proprietary format. Firefox stumbled on, but it seemed like an uphill battle that would never succeed. However they did succeed, by just keeping to their goals. The web now is more open then 10 years ago, where you couldn't even access the website of your bank with Firefox.
Now with this OS, it might turn out the same. It's all somewhat closed platforms. Apple uses Obj-C, Android a Java variant. Other platforms use Qt. Now Firefox comes along and uses a platform that is already open, html5/css/js, and uses it for apps.
I just hope the other underdogs follow suit, and use the same API, like Ubuntu, Jolla, Tizen.
We'' lees what the future brings. I think they can do it, and provide a common platform for the future.