uTox p2p messenger builds and runs fine. Haven't gotten it to find the microphone yet, but I can use the pulseaudio loopback device to stream music and podcasts to other chatters


[edit]
killing pulseaudio with /etc/init.d/pulseaudio stop...
reduces utox to 5% cpu use and eliminates the 8-11% cpu-chewing pulseaudio process. It's possible PA is something that needs work to sleep properly when not actually in-use.