Why not? With phones becoming more stronger, it wouldn't be a problem with compression. Mainly UI and how it would translate; I do not think anyone or even you would dislike another way to play a game you already enjoy? The only reason that this hasn't happened yet is that when it comes to updating one version of the game, you have to update another one, and when it comes to keeping track of both version, and updates - it's going to add more pressure.