I was trying to view a couple of videos this weekend on the iPhone app and they were not working. The vids are under the Advanced Techniques tab. They are "Tubualr Bind Off" and "Working the Heel of a Sock". I tried to tweet knittinghelp, but I don't know if I was successful. I just checked the vids again and they are still not working.
I love the app, but was disappointed when I couldn't view the sock vid. I had to stop my project and had nothing else to work while I was out of town. (I was making up a pattern.)