Ardesia 0.4 is out! http://code.google.com/p/ardesia/
Ardesia allows to draw and sketchup everywhere
You can use it with a wiimote whiteboard or a graphic tablet; in this way the lines are writing lighter or darker depending on the pen pressure
You can export your work in the pdf format to create simple presentation, tutorial or document
Ardesia allow to record and the stream on icecast streaming server thanks to the vlc media player and streamer
…Ardesia is free and simple as you are; Try it now!