Promiscuity or Private Groups: Mobile Photo Sharing

We all know photo sharing is nothing new - it's been around as long as photos have been around and that's a long long time! So what's all the buzz around mobile photo sharing now? Are people all jumping on the bandwagon to share their mobile photos? Instagram just passed 1M users within 3 months of their launch. Path introduced somewhat controversial private group sharing with 50 friends limit. And LiveShare by Cooliris just launched the first flexible private group sharing service for photos. Which brings us to question, are users more likely to resort to private streams? Is that where we are headed - small, intimate groups? What does it mean for the overall social graph(s) we have been building for the past years?

Come and join in on the discussion around mobile photo sharing, the hottest topic in Silicon Valley.