This looks really interesting and I'd love to try it, but these "refer your friend to jump ahead in line" tactics are pretty annoying. Stop pushing people to share it before they've even tried it, and let them share it after they actually enjoy using it.
And by the time they email me an say that I can download I'll have forgotten what this project was and what all the hype was about making me less likely to use it and even less likely to spread the news.
We've got so many beta requests, we can't process them fast enough. So, just refer as many people as you can, and we'll bump you up somewhere in the "waiting list". Ingenious. ;-)