What you might do, for instance, is be sitting at a computer screen and you'll be given incomplete words to fill out "hos-" like "hos-" and you have to fill out this word.
And the Wi-Fi-only version lacks GPS. Also, videophiles may dislike the fact that the iPad's screen lacks wide-screen dimensions, so you either get black bars above or below wide-screen videos, or, if you choose an option to fill the screen, some of the picture may get cut off.