For the first time, users will be able to draw, sketch or write with Apple Pencil directly in the Pages, Numbers and Keynote apps. With Apple Pencil, advanced yet easy-to-use tools allow all users, from students to professionals, to bring their documents to life with drawings, illustrations, diagrams and more. Apple Pencil can also be used to easily and precisely add color, texture and more to any drawing.

And my favorite feature:

Smart Annotation, launched today in beta, is an innovative new tool in Pages that allows users to easily give, receive and incorporate feedback in a document using Apple Pencil. With Smart Annotation, comments and proof marks will dynamically anchor to text. And as a user integrates feedback and the document changes, remaining annotations will stay with the text they were attached to.

I really do love that feature.