I like the idea but I also think this is trying to replace something that already exists: churches.
I'm not saying this as an anti-religion thing, churches are a great source of community and it's probably the best thing about them, just that this is a very apples-to-oranges comparison.
Also I don't think this is a replacement for anything really. A supplement perhaps.
Love that idea - quite an insightful and healthy approach to technology in our life.
This comment is wrong one more levels than I can count.