That is certainly one path I had never considered. Attaching UI scripts/events to NON-UI elements.
As you have read, the book is all about using the UI.
All of the guys suggestions seem to be about altering the behaviour of your 3D/2D game and not about managing the UI. (#Shudder EventTrigger)
I agree, certainly worth more investigation.
Simon (Darkside) Jackson
@SimonDarksideJ