And finally the DS4 touch pad will have a use!
But to be honest I'd rather see them change the slide notes to something button based.
Little known fact: F 2nd on the PSTV natively supports the DS4 touchpad for star notes. It overrides the default behavior of the touchpad (normally used as the virtual pointer).
It... doesn't work well at all. Especially double star notes, unless your thumbs are really tiny I guess.