Or, really, any pre-installed OS from similar sources. Linux/*BSD/MacOS are just more of a rarity as a pre-installed choice, mostly owing to the popularity of A

Or, really, any pre-installed OS from similar sources. Linux/*BSD/MacOS are just more of a rarity as a pre-installed choice, mostly owing to the popularity of Android/Windows. I suspect iOS, due to Apple's policy of "no external app sources" and other similar decisions, much as HN's audience derides them, as a consequence is most resistant to this sort of a thing.