Autodesk has officially announced when the public beta for Smoke 2013 will drop. Monday, June 4 @ 6:30PM. If you're in or around the NYC area you can go to an official release party located at the SoHo Apple Store.
For information about the release party in NYC go here.
For information about getting a pre-trial release (i.e. Beta) of Smoke 2013 go here.