I'm not sure I understand your comment. Did you try to point the camera for example to a computer screen? You should see something on the phone's screen, if you wait a second or two with the phone at about 10 cm from the target (such that the auto-focus has time to act).
If you on the other hand refer to the "almost-full-screen" layout, that's the best I could get so far, it's not far from ideal.