So then, the usage model here is to lug around the iTwinge until the moment you need to use the keypad…at which point you slide the thing on and use it to type (it apparently just presses right through to the screen). Then, when you’ve finished typing…you take this thing off again. That just sounds wonderful. Why, I already can’t imagine using an iPhone without it.

iTwinge users are advised to apply the sleeve as soon as the iPhone is taken out; typos can still occur through incidental contact, improper use of the iTwinge, and many kinds of type-play: even when the iPhone is not fully inserted into the iTwinge.

In defense of the iTwinge, I suppose one could limit oneself to the top two rows for application storage and avoid all apps that employ more than the first half of the screen. Probably some good tip calculators out there that would work just great.