For those curious, what I ended up doing was switching to an iPhone. I decided that my boycott of Google was mainly about privacy, not openness, and I resigned

For those curious, what I ended up doing was switching to an iPhone. I decided that my boycott of Google was mainly about privacy, not openness, and I resigned to the fact that I'd rather be able to fully function within our digital society than have openness in my phone (I still use Linux on my desktop). I've been happy with my decision; but for what it's worth I'd still try out a mature, truly open mobile OS if one ever surfaced.