I suggest an ability to disable the camera movement as mashing the touch screen may disrupt the "drag" input and tilt the camera instantly.
Viewing post in Touch screen support
Yeah, camera rotation was an issue in initial testing as well when your finger missed the button even slightly, so the solution was to increase the size of the touchable area around each button which prevents rotation (and also means if you're slightly off from the button with your finger it will still register as a press).
Maybe I'll disable camera rotation when playing in zoom mode on mobile. Let me think about it.
Thanks for the feedback and suggestion :)
Thanks again for your great suggestion. In the latest build the camera is now disabled if you zoom in using the zoom button in the game toolbar. Also, when a game starts (by pressing Game A or Game B) it automatically zooms in to prevent accidental rotations during gameplay. You can rotate again by zooming out.