Yeah I couldn't imagine playing on my phone is the only thing. Have the new Samsung S7 as well, a tablet maybe but a small screen and fingers would be difficult surely.
One thing is for sure, if they did expand to mobile the player base would grow.
Coming up to the tournament what do you think the rates will be? Will probably be a lot of players trying to make top 2k right at the end so will be swapping 07 gp over. Could be a good way to make bank if you gathered a ton of SDMM gp waiting for it to happen.