
This is the press release you are looking for: http://www.nasa.gov/home/hqnews/2011/feb/HQ_11-030_Kepler_Update.html
5 Earth-sized *candidates* in the habitable zone. Not confirmed as planets, and not confirmed as habitable. But I seem to recall about 70% of the candidates are eventually confirmed as planets, so there is a good chance at least the 1st part will be true.
I had the same doubts as well. But if you watch Gates' TED speech, and also this speech http://www.ted.com/talks/hans_rosling_on_global_population_growth.html which includes a very nice moving bubble chart you will see that (apparently) as the child mortality improves, people have less children. In other words, when children die by the dozens, people overcompensate for that by having more of them. Gates is essentially trying to "hack" the system by improving child mortality and _fixing_ overpopulation.
BTW, in a recent conversation, i was said "skeptical guy", but after seeing that chart i changed my mind. Do watch that speech, it's very interesting.
% "Every morning, I get up and look through the 'Forbes' list of the richest people in America. If I'm not there, I go to work" -- Robert Orben