Please consider the advice on the following link and add all those listed there so that you may then connect to many other HN users already on the system http://news.ycombinator.com/item?id=2717503
Invite a bunch of friends by sharing posts with them. It seems to work...
I got mine yesterday.
This is probably the coolest new product I've played with from Google or anyone else for that matter for a very, very long time.