Originally Posted by
Ausriver
Why would you want to use your phone in flight? Wifi is banned on any flights over China any way.
??
How about taking photographs (already mentioned by the OP in fact), as a music player, playing a downloaded game, using translation software, looking at an offline map of the place you are flying to, etc.
OP: There was a rumour towards the end of 2016 that this policy would be changed in 2017, but since then still no further signs of this on the horizon (and similar rumours have come and gone in 2015 and 2014 ...).