TFT Mobile

Does anyone else feel like TFT would be a perfect mobile game? I personally would love to be able to play this game away from my computer. The only set back I see for it would be many people leaving an 8 man free for all due to being busy at work or something like that. I believe a shorter game mode made up of 4 people would help combat this with the option of the original 8 for those who have the time to play a full length game.