What on earth is the author talking about?
"2015 was also the year Linux phones took the market by storm. Just kidding.
I had predicted that 2015 would either be the year we got Linux on mobile or it would be the year we got a mobile addendum to the longstanding "Year of Linux" joke."
You do realise that 80% of the phones in the world run Android, right? Why is Ubuntu's software on top of the Linux Kernal any different from Android?