The second (and hopefully last) BETA for Celena is out and available for download:
http://www.linuxmint.com/forum/viewtopic.php?t=5322
http://www.linuxmint.com/celena-beta021.html
http://www.linuxmint.com/download.html
This release could potentially go gold and become the stable release itself.
Please test it as hard as you can so we can make sure all important bugs are gone 🙂