NASA is announcing an earth-like planet today. It is larger and warmer than Earth, but not that much larger and warmer. It's star is in the same class as our sun. It is on the edge but within the conservative habital zone and well within the optimistic habital zone. Interestingly, it is 1.5 billion years older than Earth so there has been much more time for life to evolve. The only problem is it is 1,400 light years away. However, "Earths" are out there; it's only a matter of time until we find one a lot closer. I calculated in 2011 that the nearest one may only be 155 light years away: http://ploener.blogspot.com/2011/11/fermi-paradox-and-flightless-birds.html
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update: I noticed this posting had 100's of views seconds after posting it. I ran a search for "Kepler-452b" in google and this post came up on the top page!
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