Philip Berg has reprinted an article from a local newspaper about Philip Berg. I don't if Berg believes the US faked the moon landing but he is a proponent of the other two stupidest conspiracy theories in the world: 1. Al Gore won Florida and 2. 911 was an inside job. In short, he is a bit nutty. But Berg does bring up something interesting that the media often ignore. That is, even if Obama was born in Hawaii, his mother and step-father might have later on squandered his citizenship by making him an Indonesian citizen. In my amateur opinion, that would be the easier case to make and win. Berg is not giving up.
Check out the local story on Berg, that happens to provide a concise, if hostile, overview of the Birther movement.