I've been trying out playing OC on a laptop with touch screen and tought I'd record a bit for you.



As you can see it's a bit of a struggle, especially getting right- and left click right. (Windows does a right click if you hold down, except if you move your finger while holding).
I would find a "touch screen mode" (e.g. Minecraft has that) to be a neat feature for the distant future, since these touch laptops are becoming more popular and if it worked right it would be a lot less of a hassle than using the track pad when you don't have a mouse at hand.