Jim,
In Win 7, with X2a, touch emulates the mouse drag and click, but does it badly on faders.
You can toggle some buttons (record, mute, solo, etc) and move/resize windows.
But fader touch is not responsive, or if you manage to move it, the movement is accelerated - a small movement will cause the fader to travel to the extreme max or min. This has been the case since X1 in Win 7.
And my (test) Dell is now outdated (Win 8 upgrade diagnostic mentioned it as single touch). For any multi touch support, make sure you're on Win 8 with a real multi touch screen (10 point touch..?).