The new Beta version of FreeNAS 10 is now available for download. FreeNAS 10 Beta 2 can be downloaded through the official FreeNAS website. It comes with many stability improvements. I notice that there were many bugs found on the previous Beta and now it seems to be fixed. The complete information about new features in FreeNAS 10 can be found here.
You can download the latest FreeNAS 10 Beta 2 ISO from the link below. You may install it on a dedicated computer/server or as a virtual machine.