I posted a deviation build for Devo12 with an improved method to get the coordinates from the touch screen. There were reported some issues like "touching button A, but reaction from button B". This might be better with my build, but I did not have so much issues with the touch screen so I am not sure.
I asked to test my version but until now noboby has done so, as far as I have seen. So maybe the place for the thread beyond "Development" reaches not enough forum readers.
This is why I repeat my wish for testing here. If you are willg to, you can download the DFUs here:
http://www.deviationtx.com/forum/builds/2123-devo12-with-improved-touch-screen#13208
Please tell us if you still have issues with this version.