[3pt14159]

This is not for when you are in "get stuff down quickly" mode. They might have predictive text, but I don't think anyone will use it. For me it's when I'm editing images in Lightroom I wish I could do more stuff full screen so that I don't have the visual clutter in the way.

[microtonal]

This. Lightroom currently doesn't make it possible to view a photo fullscreen while at the same time having editing controls. A touch screen is also not ideal, because then your hand covers the image. The touch bar seems to make using adjustment controls in full-screen really easy.