This is confusing to me. How many GMail users who want to use social networking don't have a Facebook account already? It seems unlikely to me people will want

This is confusing to me. How many GMail users who want to use social networking don't have a Facebook account already? It seems unlikely to me people will want to maintain a second (third, forth, etc) list of friends and upload their pictures multiple times. There's not much chance of people quitting Facebook to use GMail as a social network. Just a bad idea all around. Sometimes I feel like Google is really lacking focus. They want to be involved in everything yet they only do a few things really well.