That's a very important and exciting milestone for sure! I'm looking forward to when I see the little 'beta' taken off from underneath the logo when I visit the site which I guess will happen at some point in the near future.
I'm proud to say that I joined steemit while it was in beta....but even more excited for what is to come for steemit and our whole community!
I'm sure it'll happen soon! It's great that we're all beta testers thus far! Something to be proud of for years to come.