As Kev announced earlier today, we took the dust of our Libjingle branch of Psi, and merged it into the mainline development branch (mainly to ease code management). It is not unusual to discover things when you go through stuff you haven't seen in a while, and this time was no different: we found out, much to our surprise, that we actually had a working support for Libjingle on Mac OS X all this time! Support for OS X was written several months ago, by defining a new sound card type in mediastreamer (a third-party framework included in libjingle), making use of the cross-platform PortAudio API to do interaction with the audio hardware. We never tested it, so we assumed it didn't work. Fortunately, a quick test proved that wrong ! So now we are down to one unsupported platform: Windows. Because PortAudio is cross-platform, it should in theory work on other platforms as well, including Windows. However, we have not had the time to test this theory, so it might require some more work. But I'm sure Kev will keep us posted on that !