Haha yes mate, about half the 77Ws have wifi now and the conversions are going very quickly. Some routes you can guarantee it. That fleet guide we maintain has the regs with wifi all marked accordingly. Cathay Pacific / Cathay Dragon Fleet, Route and Configuration Guide

I will add, of my four primary longhaul carriers (CX, EK, SQ, JL) CX 777s are hands down the fastest. While CX A350s are good, CX 777 wifi is blazing. CX deserves criticism elsewhere but definitely not in the wifi department. They were late to the game but have more than made up for it in a superior service to virtually all their competitors. Pricing plan is also very good.