Hey, Craig:
Let me tip you to a really cool touchscreen product out of England that is larger than an iPad, and works like a dream for Logic Pro users. At DAWKEYS.com you can get the Mac driver as well as the UPDD gestures app ($160). Match them with a 23-inch Acer T232HL touchscreen ($340.76 at Amazon), and you have a powerful system that dramatically speeds up workflow. There are some vids on YouTube.
Whew! Sounds like advertising, but I'm not connected. I'm just a very happy customer.
Larry Bellinger