Direct touch bypasses abstraction and creates a strong connection with the touched object. This is particularly true when the object itself triggers associations in our minds. Due to its very size and weight and display area, the iPad triggers powerful associations with:
* Printed documents
* Notepads of paper
* File-folders from the filing cabinet
There is something intrinsically “right” about seeing the iPad as a technological successor to, or version of, these physical objects. We’re immediately ready to accept the one as a substitute or enhancement for the other. This is a powerful, and novel, position for the iPad software developer.
Matt Legend Gennel: iPad application design