Maybe on one of these other Earth-like planets the iPhone 4 actually works? I kid, I kid. Scientists have recently discovered some 140 Earth-like planets using the Kepler telescope that launched in January, 2009. Even more exciting than that, scientists now estimate that there could be as many as 100 million (!) planets in our galaxy alone—remember that there's estimated to be 100 billion galaxies in the know universe (well, that's what I read)—that harbor the exact conditions necessary for life.
The next step in all of this is to take the 140 planets that seem to be Earth-like and closely look at them for signs of life. What would that be? I don't know, try to examine the contents of their atmospheres—presumably "Earth-like" means they have viable atmospheres—see if they're sitting around playing video games, etc.
How great would it be if we, as a species, find what we perceive to be intelligent life? I predict 100 percent chaos in the streets. People can't even handle their business when their favorite sports team wins the championship. Finding another planet filled with life? Best to stay indoors that day.