Few things about Google Plus you didnt notice
sidgoyal.blinkk.me
sidgoyal.blinkk.me
Yeah, tell that to twitter.
I doubt that G+ will fail for this reason, but with more well-balanced demographic it could probably get critical mass faster...
Basically its only real point is that Google should've gone for "hot chicks with pics" rather than "techy geeks" since that's how one builds social networks (or rather, that's what Facebook did and ergo what Google should do).