I think that it's in a 'building' phase now... A lot of BETA users were just looking in every once in a while. Now that more people are being added, and more features, I (as well as many others) have started to check in more regularly. I am now checking in 3-4 times a day versus once a week. I really like using the phone/+ tie in features, such as auto photo upload. Of course it can be a PITA sometimes, like when I take pics of UPC codes at work to save multiple trips to the freezers when stocking (somehow I just don't think my friends/family or acquaintances really want to be seeing those

). I've started a few games on +, but really, I don't get into too many of those on FB either.
As time goes on, IF G+ stays true to their word, with security, and builds features rapidly, I think we should see good numbers pretty quickly. BUT, people are resistant to change (as we've sure seen demonstrated, whether good or bad), and even though FB opens users up to multiple security issues and virus' people KNOW what they are into there. I hope Google sticks with it, one thing the computer world has seen enough of over the years, is plenty of monopolies. Competition is good and WE all benefit from it, so I say "Bring it on!!!".
Living the dream, stocking the cream