Virtually every game has to work on a different sized screen. This can be different size phone screens - which can even vary across different versions of the sa...
I tried it twice already, and I can't get it to work, everything get distorted :/
I also can't ... it changes the canvas size but it doesn't fit the screen ... and one hr I even managed to find the right resolution for my cell but I can't identify the resolution of the device that is running