I have had the pleasure of working with the beta 1 for more than a week now and it is behaving very well. So, any of you who have access to the BetaPlace via the Tech Preview Program, it is there now for you to download! Go and grab it, play with it... I guarantee you, you will have a lot of fun!
Since the beta is now public, I can start blogging about the different things I am doing with it. So expect some tips and tricks related to client-side development (because that is what I am focusing on these days) from me.