Well, so far I have not been able to get it to work on my Ubuntu (lucid) box. I've tried both the stable release as well as the beta versions from Linden Labs. I've tried the Phoenix version and Snowglobe 1 and 2. I know that my computer is capable of processing streaming audio as such programs as Rhythmbox and Totem process streams effectively. I can't afford to spend too much more time fooling with this but it seems a shame because the platform has potential for being an effective environment for communication.