The feature G+ is missing the most is being able to use it to post into Facebook and Twitter. I like the idea of having an alternative to Facebook, I would love to see G+ succeed, but the real problem is the time it requires to manage multiple incompatible social network presences. The thing Google could do is to make G+ a dashboard to control all your other social accounts. I hope they realize that this is one of the biggest issues for people like myself who would like to switch but are scarce on time to completely migrate their entire social network.