Hi Rob I've been using Skype 2.1.0.81 on Ubuntu 9.04, 9.10, 10.04, 10.10 with no problem. I have a ThinkPad X61 with inbuilt mike and speaker, external mike and speaker, docking station mike and speaker and webcam mike. Pulseaudio works fine on all devices for skype, VoIP and other sound apps. Alick