Oracle has released a new batch of JavaOne 2013 sessions. I gave several sessions and couple of them were released in the first batch. And this batch released the session I gave with Jim Weaver on Introduce Java Programming to Kids.
The recording is now available on parleys:
Learn from our experience of using Scratch, Greenfoot, Alice, JavaFX, Minecraft, and a bunch of other tools. You should also check out Devoxx4Kids effort which provide a wide range of materials and allow you to be a “cool mom” or a “cool dad” 
Don’t forget to rate the talk!
Great resource. JavaFX and Minecraft seems quite effective on teaching programming to kids.