Apple Pencil and 3-D touch
Currently using the Apple Pencil is no different than using your finger. It is a forgotten and potentialy powerful tool:
First it’d be nice if the Pencil was able to highlight WITHOUT having to use the pause/drag gesture that you do with your finger.
Second, utilize its pressure sensitivity capability by having access to guides within the text. This would be great for iPad with the Apple Pencil and 3D Touch on iPhones. This would be similar to the right click on desktop.
Third, utilize its pressure sensitivity capability to allow quick access to prioritized or recent resources from the library tab. This too could be available on iPhone through 3D Touch.
Finally, I would like to see highlighting shortcuts available while using your Apple Pencil, much like what is available in apple Notes currently. Would seem useful to include the option to have prioritized highlights.