For phones, unfortunately there's not much of an option. I went the Maemo route, and then it became a dead end; I went the Openmoko route, and then it became a

For phones, unfortunately there's not much of an option. I went the Maemo route, and then it became a dead end; I went the Openmoko route, and then it became a dead end too; Windows was obviously going to become a dead end (and unsurprisingly it did). There's now Pine64 and Purism, but given how many failed before, I'm not too hopeful they'll last. So the only real options are Android and Apple, and of these Android is the least closed (and also the one which doesn't require buying a whole new laptop, plus a paid registration, just to develop for it).