While the use of app + smart cover is ingenious, what I am more excited about is that this opens to a possibility of a whole slew of "smart accessories" + apps that utilises the magnets on the iPad screen.

Which got me thinking...what sort of really clever apps/accessories can one make that utilises these magnets?

I.e. Perhaps a puzzle game that uses "magnetic chopsticks" to interact with it. Or maybe an organizer app with "magnetic labels" where when you cover different parts of the screen, it pulls up a different functionality.