I Dream of Geni

I came across a new website today. It's called Geni and it appears to be a Web 2.0 social networking approach to genealogy. It's an interesting concept, but I don't know how useful a socially networked family tree can be. It seems to me that only people from huge and/or fragmented families would need a website to figure out who all of their living, Internet-savvy relatives are. Perhaps they are working on software to mine historical records for birth, death, and marriage information so they can link you to your pre-Internet descendants. That would be a really cool feature.