[ModernMech]

But what about "gorilla arm"? I used to hear that as an excuse for why touch screen windows laptops with a pen were impractical.

[seanmcdirmid]

That applies more to larger vertically mounted touch screens (including laptops with touch screens). Using an iPad with a stylus isn’t very different from using a Wacom tablet, which are fairly standard in the industry that uses photoshop anyways.