Hi, Ian.
I just watched and it was really easy to follow. Well done for the great work, again!!
One suggestion for next screencast. Can you make the code fonts bigger? It was hard to recognise the characters even in full screen mode.
Oh, and if you are looking for next screencast material, I would like to request the force layout (Mike's "Use the Force!" talk is excellent to understand the full potential of using the force, but would be nice to have very basic tutorial, too).
Cheers.
Makoto