Keyboard, Keypad and Other input features. Gestures here or somewhere else? Sensors? - Sizes of touch targets, etc. Include diagrams from Mobile Design Elements. Also see this W3C stuff, or at least refer to the group: http://www.w3.org/2010/webevents/
Good for discussion: 1) People will input the way they are comfortable: anecdote of alison's kb breaking, taking photos of hand-written notes and MMSing instead of SMS 2) Therefore, lots of input. Don't get caught up in touch as the end-all, be-all. Try to cover handwriting (natural and synthetic), funny layouts and gestures (swype), etc.
Go light on each pattern, or combine a lot. These are design considerations, more than real patterns... I think.
Talk about touch target sizes, with the illustrations, among other things.