Now Linux users can enjoy the same capabilities as Windows and Mac users to explore, create and socialize!
The beta includes several features we’ve added in recent months, such as:
* 3D voice support
* Media playback - play back any in-world media supported by GStreamer
* Lots and lots of bug fixes, polish, and performance improvements
What's particularly interesting is the view in the comments attached to this post that the GNU/Linux is already more stable than that for Windows.