Hi folks- we now have a web page to let you take a shot at getting the technical preview:  https://microsoft.crgevents.com/Office2010TheMovie/Content/Default.aspx?p=Home&

I don't have the selection criteria, and there's no guarantee that you'll be picked.  But it's worth a try if you want a chance to play with OneNote 2010.  For now, jump on over there and sign up if you want to see what is in store for our next release!