Mod Bod, you read a lot about people having trouble getting two touch screens to work together or only being able to set up the primary screen as the touch. I can tell you I have configured more than one touch screen and I have also worked with two monitors where the first monitor was NOT the touch screen.
Now, I can't speak to every brand of touch screen. But I can tell you that it's confusing how to configure it on Windows. It took some fiddling to figure out how to properly identify the touch with the monitor that the touch is for. I'm convinced that is the majority of the troubs you read about on the web.
Can I get some backup from the Bakers on this? Or Craig?
Mod Bod, see this link...
http://www.surfacegeeks.net/forums/index.php?/topic/555-how-to-configure-dual-touchscreens-on-windows-8/ I think that's the trick.
Just to add, touch works on all kinds of things, including Linux Ubuntu Studio. Just because some apps don't support multipoint touch doesn't mean they don't support touch at all.