iOS runs plenty of productivity software, many which run great on larger screen devices like this or iPads. What does "productivity" mean to you? Or is it just terminals and coding?

I might be a weirdo, but even the mail client on iOS has serious deficiencies. Just getting an email with a zip attachment where I have to edit / sign a document with a certificate / something, rezip and send back is a hell in iOS, while it simply feels natural in Android.

That is a huge market that they are ignoring.