Yeah, too bad FirefoxOS never made it too far. Unfortunately, it would still be only "kind of" competition: still US-based, still in California, still financed & owned by the same (group of) people.
I'd love some real competition. Chinese, Russian, European alternatives. I would have a hard time trusting Chinese or Russian systems, maybe rightfully, maybe because decades of Propaganda have taken their toll. I'd still like to see them.