The slides were updated for SkillSwap, and then also for the ThoughtWorks talk I gave, and in addition, I've recorded screencasts for each of the demos.
NewCommand line for non-techies
I've published 37 videos for new developers, designers, UX, UI, product owners and anyone who needs to conquer the command line today.
The screencast runs all as one, and runs for 15 minutes. They're branded as jQuery for Designers, but it was so they still had the Creative Commons license on them.
I've also included all the code for the examples: