No exact date yet. I've 5 tasks that I'm working on including migrating my mongo database, setting up SSL on my domain and fixing kadira remote profiler. When those are finished I will open it up for a limited set of users to test with (for free, but not unlimited time ofcourse). I will open up a small frontpage with the ability to pre-register for free. The first couple of users will be allowed access and from that moment I will slowly increase the number of people.