beta software of any kind is never recommended for a production environment, so I wouldn't recommend using the beta (if you're one of the beta testers) as your live board. However, I highly doubt stability issues will be any kind of factor whatsoever.
If you are a licesne holder, you would just install the beta version in a seperate area on your site, and use it to test features. Maybe bring in copies of your live board's posts and memebers files etc.
Also keep in mind, Ted is *hoping* to go to beta on 12/25. That doesn't mean that on xmas morning after you open presents, the beta version will definately be there for download
--mark