Apple is trying to prevent teen sexting by replacing inappropriate text messages with pictures of a shirtless Steve Jobs. Part of this story is true, I made the other part up.
Seems pretty basic–it’s a patent for censoring text messages. It’s kind of like those personal television censors that bleep out “objectionable” words and replace them with safe alternatives (they usually use the closed-caption text in order to figure out which words are objectionable, so this is very similar). Perfect for parents who like to control every inch of their children’s lives.