Don't let the detailed illustration fool you in thinking that you are getting a glimpse into the complete iPhone 0S 4.0. In fact, the drawing in question is actually one of the many patents, Apple likes filing. The patent indicates that the latest iteration of the iPhone OS may have contact icons on the home screen. So you can have a pretty picture of your better (or worse) half on your home screen and all their information is just a touch away.
Apple detractors (read Android fanboys, actualy we are becoming them after Nexus One review) may say Google and Nokia already beat Apple to it however, according to the patent "an icon associated with an entity can be temporarily displayed on the mobile device based on the proximity of the mobile device to the entity." See Apple is considerate enough to make life easier for potential stalkers something rivals haven't thought about