Going Mobile Website

This is a website that the video in Judy's blog Going Mobile talks about. It is a a website tht you can create and share video lessons. "It is your personable recordable whiteboard."Teachers are using this to go over lessons before test, or to create individual problems for students that need help. Here is an example of a lesson on World War II. The student is asking questions and the teacher is answering her. It seems very interesting.

Do you know of anyone who has used this before? How would you use it?