Google+ Buzz

Google+ has some really interesting features that allow social networking to seamlessly integrate with your smartphone, something which Facebook, even with their app has not really done a great job with. Google has an advantage because of the Android platform which can integrate with Google+

The best features I think are Hangouts, which is sort of an impromptu evite and Huddle, which is a group messaging feature.  I don't think these are anything new, but the features integrates more fully the concepts of social networking with social interaction through a smartphone.

On the other hand, it will be tough to migrate from Facebook, although the smartphone tie-in is pretty compelling for me.